Home / 642,286.52-963,451.65-305,153.18

Finding the Fourth Proportional to 642,286.52, 963,451.65 and 305,153.18

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Solution

The fourth proportional to 642,286.52, 963,451.65 and 305,153.18 is: 457,740.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,286.52 : 963,451.65 = 305,153.18 : x
  2. Step 2: Convert to fraction form
    642,286.52/963,451.65 = 305,153.18/x
  3. Step 3: Cross multiply
    642,286.52x = 963,451.65 × 305,153.18
  4. Step 4: Simplify right side
    642,286.52x = 294,000,334,773.75
  5. Step 5: Solve for x
    x = 294,000,334,773.75/642,286.52
  6. Step 6: Final answer
    x = 457,740.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.