Home / 1,123,878.40-1,685,817.60-787,299.10

Finding the Fourth Proportional to 1,123,878.40, 1,685,817.60 and 787,299.10

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Solution

The fourth proportional to 1,123,878.40, 1,685,817.60 and 787,299.10 is: 1,180,948.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,878.40 : 1,685,817.60 = 787,299.10 : x
  2. Step 2: Convert to fraction form
    1,123,878.40/1,685,817.60 = 787,299.10/x
  3. Step 3: Cross multiply
    1,123,878.40x = 1,685,817.60 × 787,299.10
  4. Step 4: Simplify right side
    1,123,878.40x = 1,327,242,679,244.16
  5. Step 5: Solve for x
    x = 1,327,242,679,244.16/1,123,878.40
  6. Step 6: Final answer
    x = 1,180,948.65

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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.