Home / 819,023.70-1,228,535.55-744,228.30

Finding the Fourth Proportional to 819,023.70, 1,228,535.55 and 744,228.30

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Solution

The fourth proportional to 819,023.70, 1,228,535.55 and 744,228.30 is: 1,116,342.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,023.70 : 1,228,535.55 = 744,228.30 : x
  2. Step 2: Convert to fraction form
    819,023.70/1,228,535.55 = 744,228.30/x
  3. Step 3: Cross multiply
    819,023.70x = 1,228,535.55 × 744,228.30
  4. Step 4: Simplify right side
    819,023.70x = 914,310,923,866.07
  5. Step 5: Solve for x
    x = 914,310,923,866.07/819,023.70
  6. Step 6: Final answer
    x = 1,116,342.45

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Double scale
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Similar ratio
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1.5x scale

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.