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Finding the Fourth Proportional to 625,961.88, 863,748.18 and 371,263.32

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Solution

The fourth proportional to 625,961.88, 863,748.18 and 371,263.32 is: 512,296.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,961.88 : 863,748.18 = 371,263.32 : x
  2. Step 2: Convert to fraction form
    625,961.88/863,748.18 = 371,263.32/x
  3. Step 3: Cross multiply
    625,961.88x = 863,748.18 × 371,263.32
  4. Step 4: Simplify right side
    625,961.88x = 320,678,016,950.76
  5. Step 5: Solve for x
    x = 320,678,016,950.76/625,961.88
  6. Step 6: Final answer
    x = 512,296.40

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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.