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Finding the Fourth Proportional to 625,801.46, 863,607.66 and 339,321.56

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Solution

The fourth proportional to 625,801.46, 863,607.66 and 339,321.56 is: 468,264.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,801.46 : 863,607.66 = 339,321.56 : x
  2. Step 2: Convert to fraction form
    625,801.46/863,607.66 = 339,321.56/x
  3. Step 3: Cross multiply
    625,801.46x = 863,607.66 × 339,321.56
  4. Step 4: Simplify right side
    625,801.46x = 293,040,698,419.15
  5. Step 5: Solve for x
    x = 293,040,698,419.15/625,801.46
  6. Step 6: Final answer
    x = 468,264.64

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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.