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Finding the Fourth Proportional to 625,765.80, 863,551.59 and 353,887.08

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Solution

The fourth proportional to 625,765.80, 863,551.59 and 353,887.08 is: 488,361.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,765.80 : 863,551.59 = 353,887.08 : x
  2. Step 2: Convert to fraction form
    625,765.80/863,551.59 = 353,887.08/x
  3. Step 3: Cross multiply
    625,765.80x = 863,551.59 × 353,887.08
  4. Step 4: Simplify right side
    625,765.80x = 305,599,750,614.46
  5. Step 5: Solve for x
    x = 305,599,750,614.46/625,765.80
  6. Step 6: Final answer
    x = 488,361.22

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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.