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Finding the Fourth Proportional to 659,052.60, 987,801.30 and 492,646.20

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Solution

The fourth proportional to 659,052.60, 987,801.30 and 492,646.20 is: 738,388.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,052.60 : 987,801.30 = 492,646.20 : x
  2. Step 2: Convert to fraction form
    659,052.60/987,801.30 = 492,646.20/x
  3. Step 3: Cross multiply
    659,052.60x = 987,801.30 × 492,646.20
  4. Step 4: Simplify right side
    659,052.60x = 486,636,556,800.06
  5. Step 5: Solve for x
    x = 486,636,556,800.06/659,052.60
  6. Step 6: Final answer
    x = 738,388.04

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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.