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Finding the Fourth Proportional to 542,927.80, 814,391.70 and 330,351.40

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Solution

The fourth proportional to 542,927.80, 814,391.70 and 330,351.40 is: 495,527.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,927.80 : 814,391.70 = 330,351.40 : x
  2. Step 2: Convert to fraction form
    542,927.80/814,391.70 = 330,351.40/x
  3. Step 3: Cross multiply
    542,927.80x = 814,391.70 × 330,351.40
  4. Step 4: Simplify right side
    542,927.80x = 269,035,438,243.38
  5. Step 5: Solve for x
    x = 269,035,438,243.38/542,927.80
  6. Step 6: Final answer
    x = 495,527.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.