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Finding the Fourth Proportional to 558,878.88, 771,252.94 and 304,231.98

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Solution

The fourth proportional to 558,878.88, 771,252.94 and 304,231.98 is: 419,840.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,878.88 : 771,252.94 = 304,231.98 : x
  2. Step 2: Convert to fraction form
    558,878.88/771,252.94 = 304,231.98/x
  3. Step 3: Cross multiply
    558,878.88x = 771,252.94 × 304,231.98
  4. Step 4: Simplify right side
    558,878.88x = 234,639,809,017.02
  5. Step 5: Solve for x
    x = 234,639,809,017.02/558,878.88
  6. Step 6: Final answer
    x = 419,840.18

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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.