Home / 918,100.20-1,375,805.70-823,330.20

Finding the Fourth Proportional to 918,100.20, 1,375,805.70 and 823,330.20

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Solution

The fourth proportional to 918,100.20, 1,375,805.70 and 823,330.20 is: 1,233,789.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,100.20 : 1,375,805.70 = 823,330.20 : x
  2. Step 2: Convert to fraction form
    918,100.20/1,375,805.70 = 823,330.20/x
  3. Step 3: Cross multiply
    918,100.20x = 1,375,805.70 × 823,330.20
  4. Step 4: Simplify right side
    918,100.20x = 1,132,742,382,142.14
  5. Step 5: Solve for x
    x = 1,132,742,382,142.14/918,100.20
  6. Step 6: Final answer
    x = 1,233,789.50

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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.