Home / 479,215.40-718,823.10-146,748.20

Finding the Fourth Proportional to 479,215.40, 718,823.10 and 146,748.20

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Solution

The fourth proportional to 479,215.40, 718,823.10 and 146,748.20 is: 220,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,215.40 : 718,823.10 = 146,748.20 : x
  2. Step 2: Convert to fraction form
    479,215.40/718,823.10 = 146,748.20/x
  3. Step 3: Cross multiply
    479,215.40x = 718,823.10 × 146,748.20
  4. Step 4: Simplify right side
    479,215.40x = 105,485,996,043.42
  5. Step 5: Solve for x
    x = 105,485,996,043.42/479,215.40
  6. Step 6: Final answer
    x = 220,122.30

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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.