Home / 567,298.31-782,861.09-309,177.36

Finding the Fourth Proportional to 567,298.31, 782,861.09 and 309,177.36

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Solution

The fourth proportional to 567,298.31, 782,861.09 and 309,177.36 is: 426,658.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,298.31 : 782,861.09 = 309,177.36 : x
  2. Step 2: Convert to fraction form
    567,298.31/782,861.09 = 309,177.36/x
  3. Step 3: Cross multiply
    567,298.31x = 782,861.09 × 309,177.36
  4. Step 4: Simplify right side
    567,298.31x = 242,042,923,507.04
  5. Step 5: Solve for x
    x = 242,042,923,507.04/567,298.31
  6. Step 6: Final answer
    x = 426,658.99

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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.