Home / 1,123,874.40-1,685,811.60-787,295.10

Finding the Fourth Proportional to 1,123,874.40, 1,685,811.60 and 787,295.10

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Solution

The fourth proportional to 1,123,874.40, 1,685,811.60 and 787,295.10 is: 1,180,942.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,874.40 : 1,685,811.60 = 787,295.10 : x
  2. Step 2: Convert to fraction form
    1,123,874.40/1,685,811.60 = 787,295.10/x
  3. Step 3: Cross multiply
    1,123,874.40x = 1,685,811.60 × 787,295.10
  4. Step 4: Simplify right side
    1,123,874.40x = 1,327,231,212,203.16
  5. Step 5: Solve for x
    x = 1,327,231,212,203.16/1,123,874.40
  6. Step 6: Final answer
    x = 1,180,942.65

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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.