Home / 739,452.94-1,020,445.07-399,921.19

Finding the Fourth Proportional to 739,452.94, 1,020,445.07 and 399,921.19

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Solution

The fourth proportional to 739,452.94, 1,020,445.07 and 399,921.19 is: 551,891.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,452.94 : 1,020,445.07 = 399,921.19 : x
  2. Step 2: Convert to fraction form
    739,452.94/1,020,445.07 = 399,921.19/x
  3. Step 3: Cross multiply
    739,452.94x = 1,020,445.07 × 399,921.19
  4. Step 4: Simplify right side
    739,452.94x = 408,097,602,173.32
  5. Step 5: Solve for x
    x = 408,097,602,173.32/739,452.94
  6. Step 6: Final answer
    x = 551,891.24

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Double scale
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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.