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Finding the Fourth Proportional to 359,673.60, 498,448.42 and 354,599.76

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Solution

The fourth proportional to 359,673.60, 498,448.42 and 354,599.76 is: 491,416.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,673.60 : 498,448.42 = 354,599.76 : x
  2. Step 2: Convert to fraction form
    359,673.60/498,448.42 = 354,599.76/x
  3. Step 3: Cross multiply
    359,673.60x = 498,448.42 × 354,599.76
  4. Step 4: Simplify right side
    359,673.60x = 176,749,690,104.38
  5. Step 5: Solve for x
    x = 176,749,690,104.38/359,673.60
  6. Step 6: Final answer
    x = 491,416.91

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.