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Finding the Fourth Proportional to 654,611.40, 982,403.82 and 486,523.08

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Solution

The fourth proportional to 654,611.40, 982,403.82 and 486,523.08 is: 730,146.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,611.40 : 982,403.82 = 486,523.08 : x
  2. Step 2: Convert to fraction form
    654,611.40/982,403.82 = 486,523.08/x
  3. Step 3: Cross multiply
    654,611.40x = 982,403.82 × 486,523.08
  4. Step 4: Simplify right side
    654,611.40x = 477,962,132,310.17
  5. Step 5: Solve for x
    x = 477,962,132,310.17/654,611.40
  6. Step 6: Final answer
    x = 730,146.36

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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.