Home / 542,311.28-748,434.36-300,669.64

Finding the Fourth Proportional to 542,311.28, 748,434.36 and 300,669.64

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Solution

The fourth proportional to 542,311.28, 748,434.36 and 300,669.64 is: 414,948.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,311.28 : 748,434.36 = 300,669.64 : x
  2. Step 2: Convert to fraction form
    542,311.28/748,434.36 = 300,669.64/x
  3. Step 3: Cross multiply
    542,311.28x = 748,434.36 × 300,669.64
  4. Step 4: Simplify right side
    542,311.28x = 225,031,489,584.83
  5. Step 5: Solve for x
    x = 225,031,489,584.83/542,311.28
  6. Step 6: Final answer
    x = 414,948.94

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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.