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Finding the Fourth Proportional to 558,298.98, 770,460.66 and 303,650.91

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Solution

The fourth proportional to 558,298.98, 770,460.66 and 303,650.91 is: 419,042.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,298.98 : 770,460.66 = 303,650.91 : x
  2. Step 2: Convert to fraction form
    558,298.98/770,460.66 = 303,650.91/x
  3. Step 3: Cross multiply
    558,298.98x = 770,460.66 × 303,650.91
  4. Step 4: Simplify right side
    558,298.98x = 233,951,080,528.20
  5. Step 5: Solve for x
    x = 233,951,080,528.20/558,298.98
  6. Step 6: Final answer
    x = 419,042.64

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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.