Home / 880,509.17-1,321,355.73-311,888.36

Finding the Fourth Proportional to 880,509.17, 1,321,355.73 and 311,888.36

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Solution

The fourth proportional to 880,509.17, 1,321,355.73 and 311,888.36 is: 468,042.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,509.17 : 1,321,355.73 = 311,888.36 : x
  2. Step 2: Convert to fraction form
    880,509.17/1,321,355.73 = 311,888.36/x
  3. Step 3: Cross multiply
    880,509.17x = 1,321,355.73 × 311,888.36
  4. Step 4: Simplify right side
    880,509.17x = 412,115,471,606.30
  5. Step 5: Solve for x
    x = 412,115,471,606.30/880,509.17
  6. Step 6: Final answer
    x = 468,042.23

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1.5x scale

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.