Home / 1,123,813.13-1,685,721.31-458,965.13

Finding the Fourth Proportional to 1,123,813.13, 1,685,721.31 and 458,965.13

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Solution

The fourth proportional to 1,123,813.13, 1,685,721.31 and 458,965.13 is: 688,448.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,813.13 : 1,685,721.31 = 458,965.13 : x
  2. Step 2: Convert to fraction form
    1,123,813.13/1,685,721.31 = 458,965.13/x
  3. Step 3: Cross multiply
    1,123,813.13x = 1,685,721.31 × 458,965.13
  4. Step 4: Simplify right side
    1,123,813.13x = 773,687,290,611.90
  5. Step 5: Solve for x
    x = 773,687,290,611.90/1,123,813.13
  6. Step 6: Final answer
    x = 688,448.35

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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.