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Finding the Fourth Proportional to 559,368.06, 771,929.24 and 304,713.78

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Solution

The fourth proportional to 559,368.06, 771,929.24 and 304,713.78 is: 420,505.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,368.06 : 771,929.24 = 304,713.78 : x
  2. Step 2: Convert to fraction form
    559,368.06/771,929.24 = 304,713.78/x
  3. Step 3: Cross multiply
    559,368.06x = 771,929.24 × 304,713.78
  4. Step 4: Simplify right side
    559,368.06x = 235,217,475,089.36
  5. Step 5: Solve for x
    x = 235,217,475,089.36/559,368.06
  6. Step 6: Final answer
    x = 420,505.73

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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.