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Finding the Fourth Proportional to 542,225.80, 748,273.17 and 300,512.35

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Solution

The fourth proportional to 542,225.80, 748,273.17 and 300,512.35 is: 414,707.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,225.80 : 748,273.17 = 300,512.35 : x
  2. Step 2: Convert to fraction form
    542,225.80/748,273.17 = 300,512.35/x
  3. Step 3: Cross multiply
    542,225.80x = 748,273.17 × 300,512.35
  4. Step 4: Simplify right side
    542,225.80x = 224,865,328,758.65
  5. Step 5: Solve for x
    x = 224,865,328,758.65/542,225.80
  6. Step 6: Final answer
    x = 414,707.91

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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.