Home / 1,053,238.36-1,576,183.38-861,482.20

Finding the Fourth Proportional to 1,053,238.36, 1,576,183.38 and 861,482.20

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Solution

The fourth proportional to 1,053,238.36, 1,576,183.38 and 861,482.20 is: 1,289,218.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,238.36 : 1,576,183.38 = 861,482.20 : x
  2. Step 2: Convert to fraction form
    1,053,238.36/1,576,183.38 = 861,482.20/x
  3. Step 3: Cross multiply
    1,053,238.36x = 1,576,183.38 × 861,482.20
  4. Step 4: Simplify right side
    1,053,238.36x = 1,357,853,925,805.84
  5. Step 5: Solve for x
    x = 1,357,853,925,805.84/1,053,238.36
  6. Step 6: Final answer
    x = 1,289,218.07

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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.