Home / 712,221.21-1,068,437.07-206,716.68

Finding the Fourth Proportional to 712,221.21, 1,068,437.07 and 206,716.68

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Solution

The fourth proportional to 712,221.21, 1,068,437.07 and 206,716.68 is: 310,105.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,221.21 : 1,068,437.07 = 206,716.68 : x
  2. Step 2: Convert to fraction form
    712,221.21/1,068,437.07 = 206,716.68/x
  3. Step 3: Cross multiply
    712,221.21x = 1,068,437.07 × 206,716.68
  4. Step 4: Simplify right side
    712,221.21x = 220,863,763,899.33
  5. Step 5: Solve for x
    x = 220,863,763,899.33/712,221.21
  6. Step 6: Final answer
    x = 310,105.57

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Double scale
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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.