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Finding the Fourth Proportional to 565,134.27, 779,882.18 and 307,009.17

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Solution

The fourth proportional to 565,134.27, 779,882.18 and 307,009.17 is: 423,670.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,134.27 : 779,882.18 = 307,009.17 : x
  2. Step 2: Convert to fraction form
    565,134.27/779,882.18 = 307,009.17/x
  3. Step 3: Cross multiply
    565,134.27x = 779,882.18 × 307,009.17
  4. Step 4: Simplify right side
    565,134.27x = 239,430,979,244.55
  5. Step 5: Solve for x
    x = 239,430,979,244.55/565,134.27
  6. Step 6: Final answer
    x = 423,670.96

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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.