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Finding the Fourth Proportional to 728,096.80, 1,091,950.80 and 254,732.80

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Solution

The fourth proportional to 728,096.80, 1,091,950.80 and 254,732.80 is: 382,031.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,096.80 : 1,091,950.80 = 254,732.80 : x
  2. Step 2: Convert to fraction form
    728,096.80/1,091,950.80 = 254,732.80/x
  3. Step 3: Cross multiply
    728,096.80x = 1,091,950.80 × 254,732.80
  4. Step 4: Simplify right side
    728,096.80x = 278,155,684,746.24
  5. Step 5: Solve for x
    x = 278,155,684,746.24/728,096.80
  6. Step 6: Final answer
    x = 382,031.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.