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Finding the Fourth Proportional to 542,532.06, 748,690.56 and 300,814.74

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Solution

The fourth proportional to 542,532.06, 748,690.56 and 300,814.74 is: 415,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,532.06 : 748,690.56 = 300,814.74 : x
  2. Step 2: Convert to fraction form
    542,532.06/748,690.56 = 300,814.74/x
  3. Step 3: Cross multiply
    542,532.06x = 748,690.56 × 300,814.74
  4. Step 4: Simplify right side
    542,532.06x = 225,217,156,146.85
  5. Step 5: Solve for x
    x = 225,217,156,146.85/542,532.06
  6. Step 6: Final answer
    x = 415,122.30

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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.