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Finding the Fourth Proportional to 542,815.06, 749,096.80 and 301,089.76

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Solution

The fourth proportional to 542,815.06, 749,096.80 and 301,089.76 is: 415,510.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,815.06 : 749,096.80 = 301,089.76 : x
  2. Step 2: Convert to fraction form
    542,815.06/749,096.80 = 301,089.76/x
  3. Step 3: Cross multiply
    542,815.06x = 749,096.80 × 301,089.76
  4. Step 4: Simplify right side
    542,815.06x = 225,545,375,728.77
  5. Step 5: Solve for x
    x = 225,545,375,728.77/542,815.06
  6. Step 6: Final answer
    x = 415,510.53

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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.