Home / 876,330.20-1,314,495.30-498,416.60

Finding the Fourth Proportional to 876,330.20, 1,314,495.30 and 498,416.60

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Solution

The fourth proportional to 876,330.20, 1,314,495.30 and 498,416.60 is: 747,624.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,330.20 : 1,314,495.30 = 498,416.60 : x
  2. Step 2: Convert to fraction form
    876,330.20/1,314,495.30 = 498,416.60/x
  3. Step 3: Cross multiply
    876,330.20x = 1,314,495.30 × 498,416.60
  4. Step 4: Simplify right side
    876,330.20x = 655,166,278,141.98
  5. Step 5: Solve for x
    x = 655,166,278,141.98/876,330.20
  6. Step 6: Final answer
    x = 747,624.90

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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.