Home / 666,495.20-998,487.20-329,140.96

Finding the Fourth Proportional to 666,495.20, 998,487.20 and 329,140.96

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Solution

The fourth proportional to 666,495.20, 998,487.20 and 329,140.96 is: 493,091.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,495.20 : 998,487.20 = 329,140.96 : x
  2. Step 2: Convert to fraction form
    666,495.20/998,487.20 = 329,140.96/x
  3. Step 3: Cross multiply
    666,495.20x = 998,487.20 × 329,140.96
  4. Step 4: Simplify right side
    666,495.20x = 328,643,035,555.71
  5. Step 5: Solve for x
    x = 328,643,035,555.71/666,495.20
  6. Step 6: Final answer
    x = 493,091.38

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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.