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Finding the Fourth Proportional to 486,437.60, 729,658.84 and 219,886.04

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Solution

The fourth proportional to 486,437.60, 729,658.84 and 219,886.04 is: 329,830.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,437.60 : 729,658.84 = 219,886.04 : x
  2. Step 2: Convert to fraction form
    486,437.60/729,658.84 = 219,886.04/x
  3. Step 3: Cross multiply
    486,437.60x = 729,658.84 × 219,886.04
  4. Step 4: Simplify right side
    486,437.60x = 160,441,792,878.59
  5. Step 5: Solve for x
    x = 160,441,792,878.59/486,437.60
  6. Step 6: Final answer
    x = 329,830.16

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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.