Home / 688,658.24-1,032,948.48-215,287.76

Finding the Fourth Proportional to 688,658.24, 1,032,948.48 and 215,287.76

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Solution

The fourth proportional to 688,658.24, 1,032,948.48 and 215,287.76 is: 322,919.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,658.24 : 1,032,948.48 = 215,287.76 : x
  2. Step 2: Convert to fraction form
    688,658.24/1,032,948.48 = 215,287.76/x
  3. Step 3: Cross multiply
    688,658.24x = 1,032,948.48 × 215,287.76
  4. Step 4: Simplify right side
    688,658.24x = 222,381,164,454.61
  5. Step 5: Solve for x
    x = 222,381,164,454.61/688,658.24
  6. Step 6: Final answer
    x = 322,919.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.