Home / 880,043.90-1,320,054.70-280,997.46

Finding the Fourth Proportional to 880,043.90, 1,320,054.70 and 280,997.46

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Solution

The fourth proportional to 880,043.90, 1,320,054.70 and 280,997.46 is: 421,492.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,043.90 : 1,320,054.70 = 280,997.46 : x
  2. Step 2: Convert to fraction form
    880,043.90/1,320,054.70 = 280,997.46/x
  3. Step 3: Cross multiply
    880,043.90x = 1,320,054.70 × 280,997.46
  4. Step 4: Simplify right side
    880,043.90x = 370,932,017,761.06
  5. Step 5: Solve for x
    x = 370,932,017,761.06/880,043.90
  6. Step 6: Final answer
    x = 421,492.63

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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.