Home / 1,092,126.92-1,638,239.54-418,033.38

Finding the Fourth Proportional to 1,092,126.92, 1,638,239.54 and 418,033.38

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Solution

The fourth proportional to 1,092,126.92, 1,638,239.54 and 418,033.38 is: 627,068.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,126.92 : 1,638,239.54 = 418,033.38 : x
  2. Step 2: Convert to fraction form
    1,092,126.92/1,638,239.54 = 418,033.38/x
  3. Step 3: Cross multiply
    1,092,126.92x = 1,638,239.54 × 418,033.38
  4. Step 4: Simplify right side
    1,092,126.92x = 684,838,812,155.85
  5. Step 5: Solve for x
    x = 684,838,812,155.85/1,092,126.92
  6. Step 6: Final answer
    x = 627,068.89

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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.