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Finding the Fourth Proportional to 542,231.56, 748,279.62 and 300,529.74

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Solution

The fourth proportional to 542,231.56, 748,279.62 and 300,529.74 is: 414,731.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,231.56 : 748,279.62 = 300,529.74 : x
  2. Step 2: Convert to fraction form
    542,231.56/748,279.62 = 300,529.74/x
  3. Step 3: Cross multiply
    542,231.56x = 748,279.62 × 300,529.74
  4. Step 4: Simplify right side
    542,231.56x = 224,880,277,685.09
  5. Step 5: Solve for x
    x = 224,880,277,685.09/542,231.56
  6. Step 6: Final answer
    x = 414,731.08

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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.