Home / 1,256,285.70-1,884,428.55-752,400.90

Finding the Fourth Proportional to 1,256,285.70, 1,884,428.55 and 752,400.90

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Solution

The fourth proportional to 1,256,285.70, 1,884,428.55 and 752,400.90 is: 1,128,601.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,285.70 : 1,884,428.55 = 752,400.90 : x
  2. Step 2: Convert to fraction form
    1,256,285.70/1,884,428.55 = 752,400.90/x
  3. Step 3: Cross multiply
    1,256,285.70x = 1,884,428.55 × 752,400.90
  4. Step 4: Simplify right side
    1,256,285.70x = 1,417,845,737,005.70
  5. Step 5: Solve for x
    x = 1,417,845,737,005.70/1,256,285.70
  6. Step 6: Final answer
    x = 1,128,601.35

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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.