Home / 729,469.18-1,006,835.43-427,760.38

Finding the Fourth Proportional to 729,469.18, 1,006,835.43 and 427,760.38

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Solution

The fourth proportional to 729,469.18, 1,006,835.43 and 427,760.38 is: 590,407.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,469.18 : 1,006,835.43 = 427,760.38 : x
  2. Step 2: Convert to fraction form
    729,469.18/1,006,835.43 = 427,760.38/x
  3. Step 3: Cross multiply
    729,469.18x = 1,006,835.43 × 427,760.38
  4. Step 4: Simplify right side
    729,469.18x = 430,684,306,134.26
  5. Step 5: Solve for x
    x = 430,684,306,134.26/729,469.18
  6. Step 6: Final answer
    x = 590,407.82

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1.5x scale

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.