Home / 762,687.98-1,144,333.30-289,498.94

Finding the Fourth Proportional to 762,687.98, 1,144,333.30 and 289,498.94

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Solution

The fourth proportional to 762,687.98, 1,144,333.30 and 289,498.94 is: 434,362.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,687.98 : 1,144,333.30 = 289,498.94 : x
  2. Step 2: Convert to fraction form
    762,687.98/1,144,333.30 = 289,498.94/x
  3. Step 3: Cross multiply
    762,687.98x = 1,144,333.30 × 289,498.94
  4. Step 4: Simplify right side
    762,687.98x = 331,283,277,356.70
  5. Step 5: Solve for x
    x = 331,283,277,356.70/762,687.98
  6. Step 6: Final answer
    x = 434,362.79

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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.