Home / 880,499.36-1,321,340.85-311,878.42

Finding the Fourth Proportional to 880,499.36, 1,321,340.85 and 311,878.42

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Solution

The fourth proportional to 880,499.36, 1,321,340.85 and 311,878.42 is: 468,027.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,499.36 : 1,321,340.85 = 311,878.42 : x
  2. Step 2: Convert to fraction form
    880,499.36/1,321,340.85 = 311,878.42/x
  3. Step 3: Cross multiply
    880,499.36x = 1,321,340.85 × 311,878.42
  4. Step 4: Simplify right side
    880,499.36x = 412,097,693,276.11
  5. Step 5: Solve for x
    x = 412,097,693,276.11/880,499.36
  6. Step 6: Final answer
    x = 468,027.25

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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.