Home / 738,754.22-1,108,760.79-289,787.42

Finding the Fourth Proportional to 738,754.22, 1,108,760.79 and 289,787.42

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Solution

The fourth proportional to 738,754.22, 1,108,760.79 and 289,787.42 is: 434,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,754.22 : 1,108,760.79 = 289,787.42 : x
  2. Step 2: Convert to fraction form
    738,754.22/1,108,760.79 = 289,787.42/x
  3. Step 3: Cross multiply
    738,754.22x = 1,108,760.79 × 289,787.42
  4. Step 4: Simplify right side
    738,754.22x = 321,304,928,731.26
  5. Step 5: Solve for x
    x = 321,304,928,731.26/738,754.22
  6. Step 6: Final answer
    x = 434,928.05

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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.