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Finding the Fourth Proportional to 587,150.85, 810,254.43 and 345,449.01

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Solution

The fourth proportional to 587,150.85, 810,254.43 and 345,449.01 is: 476,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,150.85 : 810,254.43 = 345,449.01 : x
  2. Step 2: Convert to fraction form
    587,150.85/810,254.43 = 345,449.01/x
  3. Step 3: Cross multiply
    587,150.85x = 810,254.43 × 345,449.01
  4. Step 4: Simplify right side
    587,150.85x = 279,901,590,691.61
  5. Step 5: Solve for x
    x = 279,901,590,691.61/587,150.85
  6. Step 6: Final answer
    x = 476,711.55

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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.