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Finding the Fourth Proportional to 662,919.18, 914,437.72 and 469,108.86

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Solution

The fourth proportional to 662,919.18, 914,437.72 and 469,108.86 is: 647,093.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,919.18 : 914,437.72 = 469,108.86 : x
  2. Step 2: Convert to fraction form
    662,919.18/914,437.72 = 469,108.86/x
  3. Step 3: Cross multiply
    662,919.18x = 914,437.72 × 469,108.86
  4. Step 4: Simplify right side
    662,919.18x = 428,970,829,452.47
  5. Step 5: Solve for x
    x = 428,970,829,452.47/662,919.18
  6. Step 6: Final answer
    x = 647,093.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.