Home / 880,036.34-1,320,043.35-280,989.90

Finding the Fourth Proportional to 880,036.34, 1,320,043.35 and 280,989.90

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Solution

The fourth proportional to 880,036.34, 1,320,043.35 and 280,989.90 is: 421,481.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,036.34 : 1,320,043.35 = 280,989.90 : x
  2. Step 2: Convert to fraction form
    880,036.34/1,320,043.35 = 280,989.90/x
  3. Step 3: Cross multiply
    880,036.34x = 1,320,043.35 × 280,989.90
  4. Step 4: Simplify right side
    880,036.34x = 370,918,848,912.17
  5. Step 5: Solve for x
    x = 370,918,848,912.17/880,036.34
  6. Step 6: Final answer
    x = 421,481.29

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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.