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Finding the Fourth Proportional to 777,057.60, 1,064,572.79 and 747,934.40

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Solution

The fourth proportional to 777,057.60, 1,064,572.79 and 747,934.40 is: 1,024,673.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,057.60 : 1,064,572.79 = 747,934.40 : x
  2. Step 2: Convert to fraction form
    777,057.60/1,064,572.79 = 747,934.40/x
  3. Step 3: Cross multiply
    777,057.60x = 1,064,572.79 × 747,934.40
  4. Step 4: Simplify right side
    777,057.60x = 796,230,601,882.44
  5. Step 5: Solve for x
    x = 796,230,601,882.44/777,057.60
  6. Step 6: Final answer
    x = 1,024,673.85

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.