Home / 1,039,621.40-1,559,553.60-329,721.20

Finding the Fourth Proportional to 1,039,621.40, 1,559,553.60 and 329,721.20

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Solution

The fourth proportional to 1,039,621.40, 1,559,553.60 and 329,721.20 is: 494,620.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,621.40 : 1,559,553.60 = 329,721.20 : x
  2. Step 2: Convert to fraction form
    1,039,621.40/1,559,553.60 = 329,721.20/x
  3. Step 3: Cross multiply
    1,039,621.40x = 1,559,553.60 × 329,721.20
  4. Step 4: Simplify right side
    1,039,621.40x = 514,217,884,456.32
  5. Step 5: Solve for x
    x = 514,217,884,456.32/1,039,621.40
  6. Step 6: Final answer
    x = 494,620.33

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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.