Home / 1,123,278.70-1,684,918.05-698,125.90

Finding the Fourth Proportional to 1,123,278.70, 1,684,918.05 and 698,125.90

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Solution

The fourth proportional to 1,123,278.70, 1,684,918.05 and 698,125.90 is: 1,047,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,278.70 : 1,684,918.05 = 698,125.90 : x
  2. Step 2: Convert to fraction form
    1,123,278.70/1,684,918.05 = 698,125.90/x
  3. Step 3: Cross multiply
    1,123,278.70x = 1,684,918.05 × 698,125.90
  4. Step 4: Simplify right side
    1,123,278.70x = 1,176,284,930,082.50
  5. Step 5: Solve for x
    x = 1,176,284,930,082.50/1,123,278.70
  6. Step 6: Final answer
    x = 1,047,188.85

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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.