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Finding the Fourth Proportional to 777,715.20, 1,166,572.80 and 458,850.60

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Solution

The fourth proportional to 777,715.20, 1,166,572.80 and 458,850.60 is: 688,275.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,715.20 : 1,166,572.80 = 458,850.60 : x
  2. Step 2: Convert to fraction form
    777,715.20/1,166,572.80 = 458,850.60/x
  3. Step 3: Cross multiply
    777,715.20x = 1,166,572.80 × 458,850.60
  4. Step 4: Simplify right side
    777,715.20x = 535,282,629,223.68
  5. Step 5: Solve for x
    x = 535,282,629,223.68/777,715.20
  6. Step 6: Final answer
    x = 688,275.90

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Similar ratio
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1.5x scale

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.