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Finding the Fourth Proportional to 558,368.67, 770,489.24 and 328,912.41

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Solution

The fourth proportional to 558,368.67, 770,489.24 and 328,912.41 is: 453,864.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,368.67 : 770,489.24 = 328,912.41 : x
  2. Step 2: Convert to fraction form
    558,368.67/770,489.24 = 328,912.41/x
  3. Step 3: Cross multiply
    558,368.67x = 770,489.24 × 328,912.41
  4. Step 4: Simplify right side
    558,368.67x = 253,423,471,162.91
  5. Step 5: Solve for x
    x = 253,423,471,162.91/558,368.67
  6. Step 6: Final answer
    x = 453,864.06

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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.