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Finding the Fourth Proportional to 558,760.86, 771,090 and 304,113.90

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Solution

The fourth proportional to 558,760.86, 771,090 and 304,113.90 is: 419,677.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,760.86 : 771,090 = 304,113.90 : x
  2. Step 2: Convert to fraction form
    558,760.86/771,090 = 304,113.90/x
  3. Step 3: Cross multiply
    558,760.86x = 771,090 × 304,113.90
  4. Step 4: Simplify right side
    558,760.86x = 234,499,187,151.00
  5. Step 5: Solve for x
    x = 234,499,187,151.00/558,760.86
  6. Step 6: Final answer
    x = 419,677.19

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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.