Home / 791,330.70-1,186,996.05-486,900.30

Finding the Fourth Proportional to 791,330.70, 1,186,996.05 and 486,900.30

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Solution

The fourth proportional to 791,330.70, 1,186,996.05 and 486,900.30 is: 730,350.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,330.70 : 1,186,996.05 = 486,900.30 : x
  2. Step 2: Convert to fraction form
    791,330.70/1,186,996.05 = 486,900.30/x
  3. Step 3: Cross multiply
    791,330.70x = 1,186,996.05 × 486,900.30
  4. Step 4: Simplify right side
    791,330.70x = 577,948,732,843.82
  5. Step 5: Solve for x
    x = 577,948,732,843.82/791,330.70
  6. Step 6: Final answer
    x = 730,350.45

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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.