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Finding the Fourth Proportional to 625,799.46, 863,604.90 and 339,319.56

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Solution

The fourth proportional to 625,799.46, 863,604.90 and 339,319.56 is: 468,261.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,799.46 : 863,604.90 = 339,319.56 : x
  2. Step 2: Convert to fraction form
    625,799.46/863,604.90 = 339,319.56/x
  3. Step 3: Cross multiply
    625,799.46x = 863,604.90 × 339,319.56
  4. Step 4: Simplify right side
    625,799.46x = 293,038,034,681.84
  5. Step 5: Solve for x
    x = 293,038,034,681.84/625,799.46
  6. Step 6: Final answer
    x = 468,261.88

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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.