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Finding the Fourth Proportional to 561,375.30, 844,136.55 and 470,136.90

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Solution

The fourth proportional to 561,375.30, 844,136.55 and 470,136.90 is: 706,941.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,375.30 : 844,136.55 = 470,136.90 : x
  2. Step 2: Convert to fraction form
    561,375.30/844,136.55 = 470,136.90/x
  3. Step 3: Cross multiply
    561,375.30x = 844,136.55 × 470,136.90
  4. Step 4: Simplify right side
    561,375.30x = 396,859,740,793.70
  5. Step 5: Solve for x
    x = 396,859,740,793.70/561,375.30
  6. Step 6: Final answer
    x = 706,941.93

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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.