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Finding the Fourth Proportional to 542,134.76, 748,150.37 and 300,421.37

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Solution

The fourth proportional to 542,134.76, 748,150.37 and 300,421.37 is: 414,583.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,134.76 : 748,150.37 = 300,421.37 : x
  2. Step 2: Convert to fraction form
    542,134.76/748,150.37 = 300,421.37/x
  3. Step 3: Cross multiply
    542,134.76x = 748,150.37 × 300,421.37
  4. Step 4: Simplify right side
    542,134.76x = 224,760,357,619.30
  5. Step 5: Solve for x
    x = 224,760,357,619.30/542,134.76
  6. Step 6: Final answer
    x = 414,583.93

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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.