Home / 880,856.70-1,321,803.45-319,947.90

Finding the Fourth Proportional to 880,856.70, 1,321,803.45 and 319,947.90

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Solution

The fourth proportional to 880,856.70, 1,321,803.45 and 319,947.90 is: 480,110.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,856.70 : 1,321,803.45 = 319,947.90 : x
  2. Step 2: Convert to fraction form
    880,856.70/1,321,803.45 = 319,947.90/x
  3. Step 3: Cross multiply
    880,856.70x = 1,321,803.45 × 319,947.90
  4. Step 4: Simplify right side
    880,856.70x = 422,908,238,040.26
  5. Step 5: Solve for x
    x = 422,908,238,040.26/880,856.70
  6. Step 6: Final answer
    x = 480,110.15

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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.