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Finding the Fourth Proportional to 625,504.30, 863,275.87 and 349,877.48

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Solution

The fourth proportional to 625,504.30, 863,275.87 and 349,877.48 is: 482,875.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,504.30 : 863,275.87 = 349,877.48 : x
  2. Step 2: Convert to fraction form
    625,504.30/863,275.87 = 349,877.48/x
  3. Step 3: Cross multiply
    625,504.30x = 863,275.87 × 349,877.48
  4. Step 4: Simplify right side
    625,504.30x = 302,040,782,061.38
  5. Step 5: Solve for x
    x = 302,040,782,061.38/625,504.30
  6. Step 6: Final answer
    x = 482,875.63

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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.