Home / 509,748.72-703,471.20-280,323.44

Finding the Fourth Proportional to 509,748.72, 703,471.20 and 280,323.44

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Solution

The fourth proportional to 509,748.72, 703,471.20 and 280,323.44 is: 386,856.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,748.72 : 703,471.20 = 280,323.44 : x
  2. Step 2: Convert to fraction form
    509,748.72/703,471.20 = 280,323.44/x
  3. Step 3: Cross multiply
    509,748.72x = 703,471.20 × 280,323.44
  4. Step 4: Simplify right side
    509,748.72x = 197,199,466,724.93
  5. Step 5: Solve for x
    x = 197,199,466,724.93/509,748.72
  6. Step 6: Final answer
    x = 386,856.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.