Home / 739,729.50-1,020,834.12-400,205.04

Finding the Fourth Proportional to 739,729.50, 1,020,834.12 and 400,205.04

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Solution

The fourth proportional to 739,729.50, 1,020,834.12 and 400,205.04 is: 552,286.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,729.50 : 1,020,834.12 = 400,205.04 : x
  2. Step 2: Convert to fraction form
    739,729.50/1,020,834.12 = 400,205.04/x
  3. Step 3: Cross multiply
    739,729.50x = 1,020,834.12 × 400,205.04
  4. Step 4: Simplify right side
    739,729.50x = 408,542,959,827.97
  5. Step 5: Solve for x
    x = 408,542,959,827.97/739,729.50
  6. Step 6: Final answer
    x = 552,286.96

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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.