Home / 642,931.92-964,558.25-453,761.79

Finding the Fourth Proportional to 642,931.92, 964,558.25 and 453,761.79

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Solution

The fourth proportional to 642,931.92, 964,558.25 and 453,761.79 is: 680,755.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,931.92 : 964,558.25 = 453,761.79 : x
  2. Step 2: Convert to fraction form
    642,931.92/964,558.25 = 453,761.79/x
  3. Step 3: Cross multiply
    642,931.92x = 964,558.25 × 453,761.79
  4. Step 4: Simplify right side
    642,931.92x = 437,679,675,810.46
  5. Step 5: Solve for x
    x = 437,679,675,810.46/642,931.92
  6. Step 6: Final answer
    x = 680,755.87

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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.