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Finding the Fourth Proportional to 488,452.60, 732,678.90 and 288,998.20

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Solution

The fourth proportional to 488,452.60, 732,678.90 and 288,998.20 is: 433,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,452.60 : 732,678.90 = 288,998.20 : x
  2. Step 2: Convert to fraction form
    488,452.60/732,678.90 = 288,998.20/x
  3. Step 3: Cross multiply
    488,452.60x = 732,678.90 × 288,998.20
  4. Step 4: Simplify right side
    488,452.60x = 211,742,883,277.98
  5. Step 5: Solve for x
    x = 211,742,883,277.98/488,452.60
  6. Step 6: Final answer
    x = 433,497.30

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Similar ratio
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1.5x scale

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.