Home / 980,442.44-1,353,011.28-550,722.80

Finding the Fourth Proportional to 980,442.44, 1,353,011.28 and 550,722.80

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Solution

The fourth proportional to 980,442.44, 1,353,011.28 and 550,722.80 is: 759,997.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,442.44 : 1,353,011.28 = 550,722.80 : x
  2. Step 2: Convert to fraction form
    980,442.44/1,353,011.28 = 550,722.80/x
  3. Step 3: Cross multiply
    980,442.44x = 1,353,011.28 × 550,722.80
  4. Step 4: Simplify right side
    980,442.44x = 745,134,160,553.18
  5. Step 5: Solve for x
    x = 745,134,160,553.18/980,442.44
  6. Step 6: Final answer
    x = 759,997.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.