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Finding the Fourth Proportional to 559,338.95, 771,883.80 and 304,690.14

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Solution

The fourth proportional to 559,338.95, 771,883.80 and 304,690.14 is: 420,470.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,338.95 : 771,883.80 = 304,690.14 : x
  2. Step 2: Convert to fraction form
    559,338.95/771,883.80 = 304,690.14/x
  3. Step 3: Cross multiply
    559,338.95x = 771,883.80 × 304,690.14
  4. Step 4: Simplify right side
    559,338.95x = 235,185,383,085.73
  5. Step 5: Solve for x
    x = 235,185,383,085.73/559,338.95
  6. Step 6: Final answer
    x = 420,470.24

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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.