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Finding the Fourth Proportional to 853,486.96, 1,281,033.96 and 433,064.56

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Solution

The fourth proportional to 853,486.96, 1,281,033.96 and 433,064.56 is: 650,004.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,486.96 : 1,281,033.96 = 433,064.56 : x
  2. Step 2: Convert to fraction form
    853,486.96/1,281,033.96 = 433,064.56/x
  3. Step 3: Cross multiply
    853,486.96x = 1,281,033.96 × 433,064.56
  4. Step 4: Simplify right side
    853,486.96x = 554,770,408,232.46
  5. Step 5: Solve for x
    x = 554,770,408,232.46/853,486.96
  6. Step 6: Final answer
    x = 650,004.55

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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.