Home / 783,387.40-1,175,081.10-222,421.90

Finding the Fourth Proportional to 783,387.40, 1,175,081.10 and 222,421.90

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Solution

The fourth proportional to 783,387.40, 1,175,081.10 and 222,421.90 is: 333,632.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,387.40 : 1,175,081.10 = 222,421.90 : x
  2. Step 2: Convert to fraction form
    783,387.40/1,175,081.10 = 222,421.90/x
  3. Step 3: Cross multiply
    783,387.40x = 1,175,081.10 × 222,421.90
  4. Step 4: Simplify right side
    783,387.40x = 261,363,770,916.09
  5. Step 5: Solve for x
    x = 261,363,770,916.09/783,387.40
  6. Step 6: Final answer
    x = 333,632.85

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Double scale
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Similar ratio
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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.