Home / 868,348.78-1,198,308.16-486,389.22

Finding the Fourth Proportional to 868,348.78, 1,198,308.16 and 486,389.22

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Solution

The fourth proportional to 868,348.78, 1,198,308.16 and 486,389.22 is: 671,209.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,348.78 : 1,198,308.16 = 486,389.22 : x
  2. Step 2: Convert to fraction form
    868,348.78/1,198,308.16 = 486,389.22/x
  3. Step 3: Cross multiply
    868,348.78x = 1,198,308.16 × 486,389.22
  4. Step 4: Simplify right side
    868,348.78x = 582,844,171,262.04
  5. Step 5: Solve for x
    x = 582,844,171,262.04/868,348.78
  6. Step 6: Final answer
    x = 671,209.75

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1.5x scale

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.