Home / 762,679.98-1,144,321.29-289,490.94

Finding the Fourth Proportional to 762,679.98, 1,144,321.29 and 289,490.94

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Solution

The fourth proportional to 762,679.98, 1,144,321.29 and 289,490.94 is: 434,350.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,679.98 : 1,144,321.29 = 289,490.94 : x
  2. Step 2: Convert to fraction form
    762,679.98/1,144,321.29 = 289,490.94/x
  3. Step 3: Cross multiply
    762,679.98x = 1,144,321.29 × 289,490.94
  4. Step 4: Simplify right side
    762,679.98x = 331,270,645,904.11
  5. Step 5: Solve for x
    x = 331,270,645,904.11/762,679.98
  6. Step 6: Final answer
    x = 434,350.78

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1.5x scale

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.