Home / 649,867.20-975,279.84-308,311.92

Finding the Fourth Proportional to 649,867.20, 975,279.84 and 308,311.92

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Solution

The fourth proportional to 649,867.20, 975,279.84 and 308,311.92 is: 462,695.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,867.20 : 975,279.84 = 308,311.92 : x
  2. Step 2: Convert to fraction form
    649,867.20/975,279.84 = 308,311.92/x
  3. Step 3: Cross multiply
    649,867.20x = 975,279.84 × 308,311.92
  4. Step 4: Simplify right side
    649,867.20x = 300,690,400,007.69
  5. Step 5: Solve for x
    x = 300,690,400,007.69/649,867.20
  6. Step 6: Final answer
    x = 462,695.15

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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.