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Finding the Fourth Proportional to 559,373.54, 771,928.52 and 304,719.26

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Solution

The fourth proportional to 559,373.54, 771,928.52 and 304,719.26 is: 420,508.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,373.54 : 771,928.52 = 304,719.26 : x
  2. Step 2: Convert to fraction form
    559,373.54/771,928.52 = 304,719.26/x
  3. Step 3: Cross multiply
    559,373.54x = 771,928.52 × 304,719.26
  4. Step 4: Simplify right side
    559,373.54x = 235,221,487,387.30
  5. Step 5: Solve for x
    x = 235,221,487,387.30/559,373.54
  6. Step 6: Final answer
    x = 420,508.78

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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.