Home / 862,118.40-1,293,000.96-542,123.52

Finding the Fourth Proportional to 862,118.40, 1,293,000.96 and 542,123.52

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Solution

The fourth proportional to 862,118.40, 1,293,000.96 and 542,123.52 is: 813,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,118.40 : 1,293,000.96 = 542,123.52 : x
  2. Step 2: Convert to fraction form
    862,118.40/1,293,000.96 = 542,123.52/x
  3. Step 3: Cross multiply
    862,118.40x = 1,293,000.96 × 542,123.52
  4. Step 4: Simplify right side
    862,118.40x = 700,966,231,798.58
  5. Step 5: Solve for x
    x = 700,966,231,798.58/862,118.40
  6. Step 6: Final answer
    x = 813,074.20

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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.