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Finding the Fourth Proportional to 655,557.60, 982,645.20 and 374,469.60

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Solution

The fourth proportional to 655,557.60, 982,645.20 and 374,469.60 is: 561,309.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,557.60 : 982,645.20 = 374,469.60 : x
  2. Step 2: Convert to fraction form
    655,557.60/982,645.20 = 374,469.60/x
  3. Step 3: Cross multiply
    655,557.60x = 982,645.20 × 374,469.60
  4. Step 4: Simplify right side
    655,557.60x = 367,970,754,985.92
  5. Step 5: Solve for x
    x = 367,970,754,985.92/655,557.60
  6. Step 6: Final answer
    x = 561,309.57

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1.5x scale

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.