Home / 739,456.07-1,020,449.37-399,924.32

Finding the Fourth Proportional to 739,456.07, 1,020,449.37 and 399,924.32

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Solution

The fourth proportional to 739,456.07, 1,020,449.37 and 399,924.32 is: 551,895.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,456.07 : 1,020,449.37 = 399,924.32 : x
  2. Step 2: Convert to fraction form
    739,456.07/1,020,449.37 = 399,924.32/x
  3. Step 3: Cross multiply
    739,456.07x = 1,020,449.37 × 399,924.32
  4. Step 4: Simplify right side
    739,456.07x = 408,102,520,391.68
  5. Step 5: Solve for x
    x = 408,102,520,391.68/739,456.07
  6. Step 6: Final answer
    x = 551,895.56

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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.