Home / 726,465.38-1,002,531.40-399,815.98

Finding the Fourth Proportional to 726,465.38, 1,002,531.40 and 399,815.98

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Solution

The fourth proportional to 726,465.38, 1,002,531.40 and 399,815.98 is: 551,751.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,465.38 : 1,002,531.40 = 399,815.98 : x
  2. Step 2: Convert to fraction form
    726,465.38/1,002,531.40 = 399,815.98/x
  3. Step 3: Cross multiply
    726,465.38x = 1,002,531.40 × 399,815.98
  4. Step 4: Simplify right side
    726,465.38x = 400,828,076,305.14
  5. Step 5: Solve for x
    x = 400,828,076,305.14/726,465.38
  6. Step 6: Final answer
    x = 551,751.11

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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.