Home / 723,946.20-1,085,919.30-499,997.40

Finding the Fourth Proportional to 723,946.20, 1,085,919.30 and 499,997.40

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Solution

The fourth proportional to 723,946.20, 1,085,919.30 and 499,997.40 is: 749,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,946.20 : 1,085,919.30 = 499,997.40 : x
  2. Step 2: Convert to fraction form
    723,946.20/1,085,919.30 = 499,997.40/x
  3. Step 3: Cross multiply
    723,946.20x = 1,085,919.30 × 499,997.40
  4. Step 4: Simplify right side
    723,946.20x = 542,956,826,609.82
  5. Step 5: Solve for x
    x = 542,956,826,609.82/723,946.20
  6. Step 6: Final answer
    x = 749,996.10

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Half scale
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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.