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Finding the Fourth Proportional to 542,554, 748,733.54 and 300,846.76

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Solution

The fourth proportional to 542,554, 748,733.54 and 300,846.76 is: 415,173.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,554 : 748,733.54 = 300,846.76 : x
  2. Step 2: Convert to fraction form
    542,554/748,733.54 = 300,846.76/x
  3. Step 3: Cross multiply
    542,554x = 748,733.54 × 300,846.76
  4. Step 4: Simplify right side
    542,554x = 225,254,059,612.33
  5. Step 5: Solve for x
    x = 225,254,059,612.33/542,554
  6. Step 6: Final answer
    x = 415,173.53

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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.