Home / 1,154,721.25-1,732,178.79-425,443

Finding the Fourth Proportional to 1,154,721.25, 1,732,178.79 and 425,443

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Solution

The fourth proportional to 1,154,721.25, 1,732,178.79 and 425,443 is: 638,200.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,721.25 : 1,732,178.79 = 425,443 : x
  2. Step 2: Convert to fraction form
    1,154,721.25/1,732,178.79 = 425,443/x
  3. Step 3: Cross multiply
    1,154,721.25x = 1,732,178.79 × 425,443
  4. Step 4: Simplify right side
    1,154,721.25x = 736,943,340,953.97
  5. Step 5: Solve for x
    x = 736,943,340,953.97/1,154,721.25
  6. Step 6: Final answer
    x = 638,200.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.