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Finding the Fourth Proportional to 580,810.60, 870,179.10 and 491,645.80

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Solution

The fourth proportional to 580,810.60, 870,179.10 and 491,645.80 is: 736,591.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,810.60 : 870,179.10 = 491,645.80 : x
  2. Step 2: Convert to fraction form
    580,810.60/870,179.10 = 491,645.80/x
  3. Step 3: Cross multiply
    580,810.60x = 870,179.10 × 491,645.80
  4. Step 4: Simplify right side
    580,810.60x = 427,819,899,762.78
  5. Step 5: Solve for x
    x = 427,819,899,762.78/580,810.60
  6. Step 6: Final answer
    x = 736,591.07

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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.