Home / 880,507.17-1,321,352.73-311,886.36

Finding the Fourth Proportional to 880,507.17, 1,321,352.73 and 311,886.36

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Solution

The fourth proportional to 880,507.17, 1,321,352.73 and 311,886.36 is: 468,039.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,507.17 : 1,321,352.73 = 311,886.36 : x
  2. Step 2: Convert to fraction form
    880,507.17/1,321,352.73 = 311,886.36/x
  3. Step 3: Cross multiply
    880,507.17x = 1,321,352.73 × 311,886.36
  4. Step 4: Simplify right side
    880,507.17x = 412,111,893,235.76
  5. Step 5: Solve for x
    x = 412,111,893,235.76/880,507.17
  6. Step 6: Final answer
    x = 468,039.22

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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.