Home / 868,430.24-1,198,419.73-486,455.84

Finding the Fourth Proportional to 868,430.24, 1,198,419.73 and 486,455.84

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Solution

The fourth proportional to 868,430.24, 1,198,419.73 and 486,455.84 is: 671,301.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,430.24 : 1,198,419.73 = 486,455.84 : x
  2. Step 2: Convert to fraction form
    868,430.24/1,198,419.73 = 486,455.84/x
  3. Step 3: Cross multiply
    868,430.24x = 1,198,419.73 × 486,455.84
  4. Step 4: Simplify right side
    868,430.24x = 582,978,269,221.49
  5. Step 5: Solve for x
    x = 582,978,269,221.49/868,430.24
  6. Step 6: Final answer
    x = 671,301.21

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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.