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Finding the Fourth Proportional to 700,625.18, 966,934.17 and 428,872.65

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Solution

The fourth proportional to 700,625.18, 966,934.17 and 428,872.65 is: 591,887.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,625.18 : 966,934.17 = 428,872.65 : x
  2. Step 2: Convert to fraction form
    700,625.18/966,934.17 = 428,872.65/x
  3. Step 3: Cross multiply
    700,625.18x = 966,934.17 × 428,872.65
  4. Step 4: Simplify right side
    700,625.18x = 414,691,619,863.45
  5. Step 5: Solve for x
    x = 414,691,619,863.45/700,625.18
  6. Step 6: Final answer
    x = 591,887.98

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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.