Home / 1,389,340.26-2,083,947.80-579,391.16

Finding the Fourth Proportional to 1,389,340.26, 2,083,947.80 and 579,391.16

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Solution

The fourth proportional to 1,389,340.26, 2,083,947.80 and 579,391.16 is: 869,060.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,340.26 : 2,083,947.80 = 579,391.16 : x
  2. Step 2: Convert to fraction form
    1,389,340.26/2,083,947.80 = 579,391.16/x
  3. Step 3: Cross multiply
    1,389,340.26x = 2,083,947.80 × 579,391.16
  4. Step 4: Simplify right side
    1,389,340.26x = 1,207,420,919,904.75
  5. Step 5: Solve for x
    x = 1,207,420,919,904.75/1,389,340.26
  6. Step 6: Final answer
    x = 869,060.63

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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.