Home / 1,345,553.28-2,015,530.56-636,148.80

Finding the Fourth Proportional to 1,345,553.28, 2,015,530.56 and 636,148.80

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Solution

The fourth proportional to 1,345,553.28, 2,015,530.56 and 636,148.80 is: 952,899.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,553.28 : 2,015,530.56 = 636,148.80 : x
  2. Step 2: Convert to fraction form
    1,345,553.28/2,015,530.56 = 636,148.80/x
  3. Step 3: Cross multiply
    1,345,553.28x = 2,015,530.56 × 636,148.80
  4. Step 4: Simplify right side
    1,345,553.28x = 1,282,177,347,107.33
  5. Step 5: Solve for x
    x = 1,282,177,347,107.33/1,345,553.28
  6. Step 6: Final answer
    x = 952,899.72

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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.