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Finding the Fourth Proportional to 558,718.88, 771,017.28 and 304,064.60

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Solution

The fourth proportional to 558,718.88, 771,017.28 and 304,064.60 is: 419,601.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,718.88 : 771,017.28 = 304,064.60 : x
  2. Step 2: Convert to fraction form
    558,718.88/771,017.28 = 304,064.60/x
  3. Step 3: Cross multiply
    558,718.88x = 771,017.28 × 304,064.60
  4. Step 4: Simplify right side
    558,718.88x = 234,439,060,836.29
  5. Step 5: Solve for x
    x = 234,439,060,836.29/558,718.88
  6. Step 6: Final answer
    x = 419,601.11

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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.