Home / 642,287.52-963,453.15-305,154.18

Finding the Fourth Proportional to 642,287.52, 963,453.15 and 305,154.18

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Solution

The fourth proportional to 642,287.52, 963,453.15 and 305,154.18 is: 457,741.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,287.52 : 963,453.15 = 305,154.18 : x
  2. Step 2: Convert to fraction form
    642,287.52/963,453.15 = 305,154.18/x
  3. Step 3: Cross multiply
    642,287.52x = 963,453.15 × 305,154.18
  4. Step 4: Simplify right side
    642,287.52x = 294,001,755,956.67
  5. Step 5: Solve for x
    x = 294,001,755,956.67/642,287.52
  6. Step 6: Final answer
    x = 457,741.66

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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.