Home / 2,486,320.13-3,430,876.65-1,398,568.29

Finding the Fourth Proportional to 2,486,320.13, 3,430,876.65 and 1,398,568.29

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Solution

The fourth proportional to 2,486,320.13, 3,430,876.65 and 1,398,568.29 is: 1,929,886.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486,320.13 : 3,430,876.65 = 1,398,568.29 : x
  2. Step 2: Convert to fraction form
    2,486,320.13/3,430,876.65 = 1,398,568.29/x
  3. Step 3: Cross multiply
    2,486,320.13x = 3,430,876.65 × 1,398,568.29
  4. Step 4: Simplify right side
    2,486,320.13x = 4,798,315,289,591.43
  5. Step 5: Solve for x
    x = 4,798,315,289,591.43/2,486,320.13
  6. Step 6: Final answer
    x = 1,929,886.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.