Home / 726,154.49-1,002,128.67-403,857.68

Finding the Fourth Proportional to 726,154.49, 1,002,128.67 and 403,857.68

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Solution

The fourth proportional to 726,154.49, 1,002,128.67 and 403,857.68 is: 557,343.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,154.49 : 1,002,128.67 = 403,857.68 : x
  2. Step 2: Convert to fraction form
    726,154.49/1,002,128.67 = 403,857.68/x
  3. Step 3: Cross multiply
    726,154.49x = 1,002,128.67 × 403,857.68
  4. Step 4: Simplify right side
    726,154.49x = 404,717,354,717.04
  5. Step 5: Solve for x
    x = 404,717,354,717.04/726,154.49
  6. Step 6: Final answer
    x = 557,343.32

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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.