Home / 1,123,845.40-1,685,768.10-787,266.10

Finding the Fourth Proportional to 1,123,845.40, 1,685,768.10 and 787,266.10

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Solution

The fourth proportional to 1,123,845.40, 1,685,768.10 and 787,266.10 is: 1,180,899.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,845.40 : 1,685,768.10 = 787,266.10 : x
  2. Step 2: Convert to fraction form
    1,123,845.40/1,685,768.10 = 787,266.10/x
  3. Step 3: Cross multiply
    1,123,845.40x = 1,685,768.10 × 787,266.10
  4. Step 4: Simplify right side
    1,123,845.40x = 1,327,148,077,591.41
  5. Step 5: Solve for x
    x = 1,327,148,077,591.41/1,123,845.40
  6. Step 6: Final answer
    x = 1,180,899.15

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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.