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Finding the Fourth Proportional to 542,672.88, 748,888.57 and 300,992.46

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Solution

The fourth proportional to 542,672.88, 748,888.57 and 300,992.46 is: 415,369.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,672.88 : 748,888.57 = 300,992.46 : x
  2. Step 2: Convert to fraction form
    542,672.88/748,888.57 = 300,992.46/x
  3. Step 3: Cross multiply
    542,672.88x = 748,888.57 × 300,992.46
  4. Step 4: Simplify right side
    542,672.88x = 225,409,812,950.18
  5. Step 5: Solve for x
    x = 225,409,812,950.18/542,672.88
  6. Step 6: Final answer
    x = 415,369.59

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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.