Home / 2,486,492.76-3,431,355.09-1,398,765.18

Finding the Fourth Proportional to 2,486,492.76, 3,431,355.09 and 1,398,765.18

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Solution

The fourth proportional to 2,486,492.76, 3,431,355.09 and 1,398,765.18 is: 1,930,293.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486,492.76 : 3,431,355.09 = 1,398,765.18 : x
  2. Step 2: Convert to fraction form
    2,486,492.76/3,431,355.09 = 1,398,765.18/x
  3. Step 3: Cross multiply
    2,486,492.76x = 3,431,355.09 × 1,398,765.18
  4. Step 4: Simplify right side
    2,486,492.76x = 4,799,660,020,107.77
  5. Step 5: Solve for x
    x = 4,799,660,020,107.77/2,486,492.76
  6. Step 6: Final answer
    x = 1,930,293.18

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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.