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Finding the Fourth Proportional to 542,452.56, 748,628.88 and 300,810.92

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Solution

The fourth proportional to 542,452.56, 748,628.88 and 300,810.92 is: 415,143.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,452.56 : 748,628.88 = 300,810.92 : x
  2. Step 2: Convert to fraction form
    542,452.56/748,628.88 = 300,810.92/x
  3. Step 3: Cross multiply
    542,452.56x = 748,628.88 × 300,810.92
  4. Step 4: Simplify right side
    542,452.56x = 225,195,742,131.37
  5. Step 5: Solve for x
    x = 225,195,742,131.37/542,452.56
  6. Step 6: Final answer
    x = 415,143.66

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Double scale
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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.