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Finding the Fourth Proportional to 459,002.60, 688,503.90 and 455,892.20

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Solution

The fourth proportional to 459,002.60, 688,503.90 and 455,892.20 is: 683,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,002.60 : 688,503.90 = 455,892.20 : x
  2. Step 2: Convert to fraction form
    459,002.60/688,503.90 = 455,892.20/x
  3. Step 3: Cross multiply
    459,002.60x = 688,503.90 × 455,892.20
  4. Step 4: Simplify right side
    459,002.60x = 313,883,557,679.58
  5. Step 5: Solve for x
    x = 313,883,557,679.58/459,002.60
  6. Step 6: Final answer
    x = 683,838.30

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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.