Home / 1,425,285.68-1,966,346.93-813,472.43

Finding the Fourth Proportional to 1,425,285.68, 1,966,346.93 and 813,472.43

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Solution

The fourth proportional to 1,425,285.68, 1,966,346.93 and 813,472.43 is: 1,122,279.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,285.68 : 1,966,346.93 = 813,472.43 : x
  2. Step 2: Convert to fraction form
    1,425,285.68/1,966,346.93 = 813,472.43/x
  3. Step 3: Cross multiply
    1,425,285.68x = 1,966,346.93 × 813,472.43
  4. Step 4: Simplify right side
    1,425,285.68x = 1,599,569,001,471.04
  5. Step 5: Solve for x
    x = 1,599,569,001,471.04/1,425,285.68
  6. Step 6: Final answer
    x = 1,122,279.57

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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.