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Finding the Fourth Proportional to 542,912.63, 749,220.03 and 316,601.87

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Solution

The fourth proportional to 542,912.63, 749,220.03 and 316,601.87 is: 436,910.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,912.63 : 749,220.03 = 316,601.87 : x
  2. Step 2: Convert to fraction form
    542,912.63/749,220.03 = 316,601.87/x
  3. Step 3: Cross multiply
    542,912.63x = 749,220.03 × 316,601.87
  4. Step 4: Simplify right side
    542,912.63x = 237,204,458,793.36
  5. Step 5: Solve for x
    x = 237,204,458,793.36/542,912.63
  6. Step 6: Final answer
    x = 436,910.93

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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.