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Finding the Fourth Proportional to 449,854.60, 674,781.90 and 117,430.60

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Solution

The fourth proportional to 449,854.60, 674,781.90 and 117,430.60 is: 176,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,854.60 : 674,781.90 = 117,430.60 : x
  2. Step 2: Convert to fraction form
    449,854.60/674,781.90 = 117,430.60/x
  3. Step 3: Cross multiply
    449,854.60x = 674,781.90 × 117,430.60
  4. Step 4: Simplify right side
    449,854.60x = 79,240,043,386.14
  5. Step 5: Solve for x
    x = 79,240,043,386.14/449,854.60
  6. Step 6: Final answer
    x = 176,145.90

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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.