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Finding the Fourth Proportional to 507,251.24, 699,997.98 and 280,891.88

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Solution

The fourth proportional to 507,251.24, 699,997.98 and 280,891.88 is: 387,625.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,251.24 : 699,997.98 = 280,891.88 : x
  2. Step 2: Convert to fraction form
    507,251.24/699,997.98 = 280,891.88/x
  3. Step 3: Cross multiply
    507,251.24x = 699,997.98 × 280,891.88
  4. Step 4: Simplify right side
    507,251.24x = 196,623,748,598.40
  5. Step 5: Solve for x
    x = 196,623,748,598.40/507,251.24
  6. Step 6: Final answer
    x = 387,625.96

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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.