Home / 763,125.30-1,144,849.86-289,800.18

Finding the Fourth Proportional to 763,125.30, 1,144,849.86 and 289,800.18

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Solution

The fourth proportional to 763,125.30, 1,144,849.86 and 289,800.18 is: 434,761.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,125.30 : 1,144,849.86 = 289,800.18 : x
  2. Step 2: Convert to fraction form
    763,125.30/1,144,849.86 = 289,800.18/x
  3. Step 3: Cross multiply
    763,125.30x = 1,144,849.86 × 289,800.18
  4. Step 4: Simplify right side
    763,125.30x = 331,777,695,500.98
  5. Step 5: Solve for x
    x = 331,777,695,500.98/763,125.30
  6. Step 6: Final answer
    x = 434,761.76

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Double scale
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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.