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Finding the Fourth Proportional to 359,397.60, 539,096.40 and 318,962.40

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Solution

The fourth proportional to 359,397.60, 539,096.40 and 318,962.40 is: 478,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,397.60 : 539,096.40 = 318,962.40 : x
  2. Step 2: Convert to fraction form
    359,397.60/539,096.40 = 318,962.40/x
  3. Step 3: Cross multiply
    359,397.60x = 539,096.40 × 318,962.40
  4. Step 4: Simplify right side
    359,397.60x = 171,951,481,575.36
  5. Step 5: Solve for x
    x = 171,951,481,575.36/359,397.60
  6. Step 6: Final answer
    x = 478,443.60

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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.