Home / 645,053.40-966,773.70-329,635.80

Finding the Fourth Proportional to 645,053.40, 966,773.70 and 329,635.80

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Solution

The fourth proportional to 645,053.40, 966,773.70 and 329,635.80 is: 494,041.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,053.40 : 966,773.70 = 329,635.80 : x
  2. Step 2: Convert to fraction form
    645,053.40/966,773.70 = 329,635.80/x
  3. Step 3: Cross multiply
    645,053.40x = 966,773.70 × 329,635.80
  4. Step 4: Simplify right side
    645,053.40x = 318,683,222,018.46
  5. Step 5: Solve for x
    x = 318,683,222,018.46/645,053.40
  6. Step 6: Final answer
    x = 494,041.61

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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.