Home / 726,313.13-1,002,319.76-399,630.41

Finding the Fourth Proportional to 726,313.13, 1,002,319.76 and 399,630.41

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Solution

The fourth proportional to 726,313.13, 1,002,319.76 and 399,630.41 is: 551,494.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,313.13 : 1,002,319.76 = 399,630.41 : x
  2. Step 2: Convert to fraction form
    726,313.13/1,002,319.76 = 399,630.41/x
  3. Step 3: Cross multiply
    726,313.13x = 1,002,319.76 × 399,630.41
  4. Step 4: Simplify right side
    726,313.13x = 400,557,452,627.38
  5. Step 5: Solve for x
    x = 400,557,452,627.38/726,313.13
  6. Step 6: Final answer
    x = 551,494.16

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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.