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Finding the Fourth Proportional to 459,882.60, 690,611.10 and 249,930.60

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Solution

The fourth proportional to 459,882.60, 690,611.10 and 249,930.60 is: 375,323.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,882.60 : 690,611.10 = 249,930.60 : x
  2. Step 2: Convert to fraction form
    459,882.60/690,611.10 = 249,930.60/x
  3. Step 3: Cross multiply
    459,882.60x = 690,611.10 × 249,930.60
  4. Step 4: Simplify right side
    459,882.60x = 172,604,846,589.66
  5. Step 5: Solve for x
    x = 172,604,846,589.66/459,882.60
  6. Step 6: Final answer
    x = 375,323.72

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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.