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Finding the Fourth Proportional to 706,363.80, 1,059,545.70 and 440,424.60

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Solution

The fourth proportional to 706,363.80, 1,059,545.70 and 440,424.60 is: 660,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,363.80 : 1,059,545.70 = 440,424.60 : x
  2. Step 2: Convert to fraction form
    706,363.80/1,059,545.70 = 440,424.60/x
  3. Step 3: Cross multiply
    706,363.80x = 1,059,545.70 × 440,424.60
  4. Step 4: Simplify right side
    706,363.80x = 466,649,991,104.22
  5. Step 5: Solve for x
    x = 466,649,991,104.22/706,363.80
  6. Step 6: Final answer
    x = 660,636.90

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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.