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Finding the Fourth Proportional to 486,020.20, 729,030.30 and 456,495.70

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Solution

The fourth proportional to 486,020.20, 729,030.30 and 456,495.70 is: 684,743.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,020.20 : 729,030.30 = 456,495.70 : x
  2. Step 2: Convert to fraction form
    486,020.20/729,030.30 = 456,495.70/x
  3. Step 3: Cross multiply
    486,020.20x = 729,030.30 × 456,495.70
  4. Step 4: Simplify right side
    486,020.20x = 332,799,197,119.71
  5. Step 5: Solve for x
    x = 332,799,197,119.71/486,020.20
  6. Step 6: Final answer
    x = 684,743.55

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Similar ratio
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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.