Home / 763,149.30-1,144,723.14-289,833.90

Finding the Fourth Proportional to 763,149.30, 1,144,723.14 and 289,833.90

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Solution

The fourth proportional to 763,149.30, 1,144,723.14 and 289,833.90 is: 434,750.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,149.30 : 1,144,723.14 = 289,833.90 : x
  2. Step 2: Convert to fraction form
    763,149.30/1,144,723.14 = 289,833.90/x
  3. Step 3: Cross multiply
    763,149.30x = 1,144,723.14 × 289,833.90
  4. Step 4: Simplify right side
    763,149.30x = 331,779,572,086.45
  5. Step 5: Solve for x
    x = 331,779,572,086.45/763,149.30
  6. Step 6: Final answer
    x = 434,750.54

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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.