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Finding the Fourth Proportional to 607,910.70, 911,779.65 and 187,229.10

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Solution

The fourth proportional to 607,910.70, 911,779.65 and 187,229.10 is: 280,817.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,910.70 : 911,779.65 = 187,229.10 : x
  2. Step 2: Convert to fraction form
    607,910.70/911,779.65 = 187,229.10/x
  3. Step 3: Cross multiply
    607,910.70x = 911,779.65 × 187,229.10
  4. Step 4: Simplify right side
    607,910.70x = 170,711,683,267.82
  5. Step 5: Solve for x
    x = 170,711,683,267.82/607,910.70
  6. Step 6: Final answer
    x = 280,817.04

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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.