Home / 725,706.38-1,088,184.54-326,005.40

Finding the Fourth Proportional to 725,706.38, 1,088,184.54 and 326,005.40

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Solution

The fourth proportional to 725,706.38, 1,088,184.54 and 326,005.40 is: 488,839.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,706.38 : 1,088,184.54 = 326,005.40 : x
  2. Step 2: Convert to fraction form
    725,706.38/1,088,184.54 = 326,005.40/x
  3. Step 3: Cross multiply
    725,706.38x = 1,088,184.54 × 326,005.40
  4. Step 4: Simplify right side
    725,706.38x = 354,754,036,236.52
  5. Step 5: Solve for x
    x = 354,754,036,236.52/725,706.38
  6. Step 6: Final answer
    x = 488,839.63

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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.