Home / 880,892.20-1,321,683.90-319,983.40

Finding the Fourth Proportional to 880,892.20, 1,321,683.90 and 319,983.40

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Solution

The fourth proportional to 880,892.20, 1,321,683.90 and 319,983.40 is: 480,100.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,892.20 : 1,321,683.90 = 319,983.40 : x
  2. Step 2: Convert to fraction form
    880,892.20/1,321,683.90 = 319,983.40/x
  3. Step 3: Cross multiply
    880,892.20x = 1,321,683.90 × 319,983.40
  4. Step 4: Simplify right side
    880,892.20x = 422,916,908,047.26
  5. Step 5: Solve for x
    x = 422,916,908,047.26/880,892.20
  6. Step 6: Final answer
    x = 480,100.64

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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.