Home / 1,113,490.80-1,670,221.64-272,049.84

Finding the Fourth Proportional to 1,113,490.80, 1,670,221.64 and 272,049.84

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Solution

The fourth proportional to 1,113,490.80, 1,670,221.64 and 272,049.84 is: 408,071.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,490.80 : 1,670,221.64 = 272,049.84 : x
  2. Step 2: Convert to fraction form
    1,113,490.80/1,670,221.64 = 272,049.84/x
  3. Step 3: Cross multiply
    1,113,490.80x = 1,670,221.64 × 272,049.84
  4. Step 4: Simplify right side
    1,113,490.80x = 454,383,529,926.54
  5. Step 5: Solve for x
    x = 454,383,529,926.54/1,113,490.80
  6. Step 6: Final answer
    x = 408,071.20

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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.