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Finding the Fourth Proportional to 586,997.82, 880,289.34 and 279,213.56

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Solution

The fourth proportional to 586,997.82, 880,289.34 and 279,213.56 is: 418,721.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,997.82 : 880,289.34 = 279,213.56 : x
  2. Step 2: Convert to fraction form
    586,997.82/880,289.34 = 279,213.56/x
  3. Step 3: Cross multiply
    586,997.82x = 880,289.34 × 279,213.56
  4. Step 4: Simplify right side
    586,997.82x = 245,788,720,451.45
  5. Step 5: Solve for x
    x = 245,788,720,451.45/586,997.82
  6. Step 6: Final answer
    x = 418,721.69

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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.