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Finding the Fourth Proportional to 988,469.80, 1,482,704.70 and 357,404.20

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Solution

The fourth proportional to 988,469.80, 1,482,704.70 and 357,404.20 is: 536,106.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,469.80 : 1,482,704.70 = 357,404.20 : x
  2. Step 2: Convert to fraction form
    988,469.80/1,482,704.70 = 357,404.20/x
  3. Step 3: Cross multiply
    988,469.80x = 1,482,704.70 × 357,404.20
  4. Step 4: Simplify right side
    988,469.80x = 529,924,887,139.74
  5. Step 5: Solve for x
    x = 529,924,887,139.74/988,469.80
  6. Step 6: Final answer
    x = 536,106.30

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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.