Home / 769,103.40-1,153,655.10-469,921.80

Finding the Fourth Proportional to 769,103.40, 1,153,655.10 and 469,921.80

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Solution

The fourth proportional to 769,103.40, 1,153,655.10 and 469,921.80 is: 704,882.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,103.40 : 1,153,655.10 = 469,921.80 : x
  2. Step 2: Convert to fraction form
    769,103.40/1,153,655.10 = 469,921.80/x
  3. Step 3: Cross multiply
    769,103.40x = 1,153,655.10 × 469,921.80
  4. Step 4: Simplify right side
    769,103.40x = 542,127,681,171.18
  5. Step 5: Solve for x
    x = 542,127,681,171.18/769,103.40
  6. Step 6: Final answer
    x = 704,882.70

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Double scale
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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.