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Finding the Fourth Proportional to 506,579.88, 699,102.17 and 280,225.38

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Solution

The fourth proportional to 506,579.88, 699,102.17 and 280,225.38 is: 386,723.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,579.88 : 699,102.17 = 280,225.38 : x
  2. Step 2: Convert to fraction form
    506,579.88/699,102.17 = 280,225.38/x
  3. Step 3: Cross multiply
    506,579.88x = 699,102.17 × 280,225.38
  4. Step 4: Simplify right side
    506,579.88x = 195,906,171,247.08
  5. Step 5: Solve for x
    x = 195,906,171,247.08/506,579.88
  6. Step 6: Final answer
    x = 386,723.16

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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.