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Finding the Fourth Proportional to 625,492, 863,174.10 and 339,004.72

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Solution

The fourth proportional to 625,492, 863,174.10 and 339,004.72 is: 467,823.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,492 : 863,174.10 = 339,004.72 : x
  2. Step 2: Convert to fraction form
    625,492/863,174.10 = 339,004.72/x
  3. Step 3: Cross multiply
    625,492x = 863,174.10 × 339,004.72
  4. Step 4: Simplify right side
    625,492x = 292,620,094,081.75
  5. Step 5: Solve for x
    x = 292,620,094,081.75/625,492
  6. Step 6: Final answer
    x = 467,823.88

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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.