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Finding the Fourth Proportional to 587,147.60, 810,249.89 and 345,445.76

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Solution

The fourth proportional to 587,147.60, 810,249.89 and 345,445.76 is: 476,707.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,147.60 : 810,249.89 = 345,445.76 : x
  2. Step 2: Convert to fraction form
    587,147.60/810,249.89 = 345,445.76/x
  3. Step 3: Cross multiply
    587,147.60x = 810,249.89 × 345,445.76
  4. Step 4: Simplify right side
    587,147.60x = 279,897,389,339.36
  5. Step 5: Solve for x
    x = 279,897,389,339.36/587,147.60
  6. Step 6: Final answer
    x = 476,707.03

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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.