Home / 431,298.40-646,822.88-146,982.56

Finding the Fourth Proportional to 431,298.40, 646,822.88 and 146,982.56

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Solution

The fourth proportional to 431,298.40, 646,822.88 and 146,982.56 is: 220,431.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,298.40 : 646,822.88 = 146,982.56 : x
  2. Step 2: Convert to fraction form
    431,298.40/646,822.88 = 146,982.56/x
  3. Step 3: Cross multiply
    431,298.40x = 646,822.88 × 146,982.56
  4. Step 4: Simplify right side
    431,298.40x = 95,071,682,768.97
  5. Step 5: Solve for x
    x = 95,071,682,768.97/431,298.40
  6. Step 6: Final answer
    x = 220,431.34

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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.