Home / 739,144.32-1,020,019.24-399,612.48

Finding the Fourth Proportional to 739,144.32, 1,020,019.24 and 399,612.48

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Solution

The fourth proportional to 739,144.32, 1,020,019.24 and 399,612.48 is: 551,465.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,144.32 : 1,020,019.24 = 399,612.48 : x
  2. Step 2: Convert to fraction form
    739,144.32/1,020,019.24 = 399,612.48/x
  3. Step 3: Cross multiply
    739,144.32x = 1,020,019.24 × 399,612.48
  4. Step 4: Simplify right side
    739,144.32x = 407,612,418,144.12
  5. Step 5: Solve for x
    x = 407,612,418,144.12/739,144.32
  6. Step 6: Final answer
    x = 551,465.26

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Half scale
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Double scale
Find fourth proportional to 739,145.32, 1,020,020.62 and 399,613.48
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.