Home / 443,964.48-666,046.44-128,445.96

Finding the Fourth Proportional to 443,964.48, 666,046.44 and 128,445.96

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Solution

The fourth proportional to 443,964.48, 666,046.44 and 128,445.96 is: 192,697.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,964.48 : 666,046.44 = 128,445.96 : x
  2. Step 2: Convert to fraction form
    443,964.48/666,046.44 = 128,445.96/x
  3. Step 3: Cross multiply
    443,964.48x = 666,046.44 × 128,445.96
  4. Step 4: Simplify right side
    443,964.48x = 85,550,974,390.38
  5. Step 5: Solve for x
    x = 85,550,974,390.38/443,964.48
  6. Step 6: Final answer
    x = 192,697.79

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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.