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Finding the Fourth Proportional to 559,387.29, 771,954.50 and 304,738.48

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Solution

The fourth proportional to 559,387.29, 771,954.50 and 304,738.48 is: 420,539.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,387.29 : 771,954.50 = 304,738.48 : x
  2. Step 2: Convert to fraction form
    559,387.29/771,954.50 = 304,738.48/x
  3. Step 3: Cross multiply
    559,387.29x = 771,954.50 × 304,738.48
  4. Step 4: Simplify right side
    559,387.29x = 235,244,240,514.83
  5. Step 5: Solve for x
    x = 235,244,240,514.83/559,387.29
  6. Step 6: Final answer
    x = 420,539.12

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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.