Home / 748,934.80-1,123,402.20-674,285.20

Finding the Fourth Proportional to 748,934.80, 1,123,402.20 and 674,285.20

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Solution

The fourth proportional to 748,934.80, 1,123,402.20 and 674,285.20 is: 1,011,427.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,934.80 : 1,123,402.20 = 674,285.20 : x
  2. Step 2: Convert to fraction form
    748,934.80/1,123,402.20 = 674,285.20/x
  3. Step 3: Cross multiply
    748,934.80x = 1,123,402.20 × 674,285.20
  4. Step 4: Simplify right side
    748,934.80x = 757,493,477,107.44
  5. Step 5: Solve for x
    x = 757,493,477,107.44/748,934.80
  6. Step 6: Final answer
    x = 1,011,427.80

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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.