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Finding the Fourth Proportional to 559,505.92, 772,126.80 and 304,856.80

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Solution

The fourth proportional to 559,505.92, 772,126.80 and 304,856.80 is: 420,707.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,505.92 : 772,126.80 = 304,856.80 : x
  2. Step 2: Convert to fraction form
    559,505.92/772,126.80 = 304,856.80/x
  3. Step 3: Cross multiply
    559,505.92x = 772,126.80 × 304,856.80
  4. Step 4: Simplify right side
    559,505.92x = 235,388,105,442.24
  5. Step 5: Solve for x
    x = 235,388,105,442.24/559,505.92
  6. Step 6: Final answer
    x = 420,707.09

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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.