Home / 753,000.76-1,129,640.46-247,589.56

Finding the Fourth Proportional to 753,000.76, 1,129,640.46 and 247,589.56

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Solution

The fourth proportional to 753,000.76, 1,129,640.46 and 247,589.56 is: 371,430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,000.76 : 1,129,640.46 = 247,589.56 : x
  2. Step 2: Convert to fraction form
    753,000.76/1,129,640.46 = 247,589.56/x
  3. Step 3: Cross multiply
    753,000.76x = 1,129,640.46 × 247,589.56
  4. Step 4: Simplify right side
    753,000.76x = 279,687,184,449.60
  5. Step 5: Solve for x
    x = 279,687,184,449.60/753,000.76
  6. Step 6: Final answer
    x = 371,430.15

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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.