Home / 1,123,321.70-1,684,982.55-698,168.90

Finding the Fourth Proportional to 1,123,321.70, 1,684,982.55 and 698,168.90

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Solution

The fourth proportional to 1,123,321.70, 1,684,982.55 and 698,168.90 is: 1,047,253.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,321.70 : 1,684,982.55 = 698,168.90 : x
  2. Step 2: Convert to fraction form
    1,123,321.70/1,684,982.55 = 698,168.90/x
  3. Step 3: Cross multiply
    1,123,321.70x = 1,684,982.55 × 698,168.90
  4. Step 4: Simplify right side
    1,123,321.70x = 1,176,402,413,452.70
  5. Step 5: Solve for x
    x = 1,176,402,413,452.70/1,123,321.70
  6. Step 6: Final answer
    x = 1,047,253.35

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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.