Home / 1,241,867.70-1,861,817.40-680,902.20

Finding the Fourth Proportional to 1,241,867.70, 1,861,817.40 and 680,902.20

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Solution

The fourth proportional to 1,241,867.70, 1,861,817.40 and 680,902.20 is: 1,020,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,867.70 : 1,861,817.40 = 680,902.20 : x
  2. Step 2: Convert to fraction form
    1,241,867.70/1,861,817.40 = 680,902.20/x
  3. Step 3: Cross multiply
    1,241,867.70x = 1,861,817.40 × 680,902.20
  4. Step 4: Simplify right side
    1,241,867.70x = 1,267,715,563,658.28
  5. Step 5: Solve for x
    x = 1,267,715,563,658.28/1,241,867.70
  6. Step 6: Final answer
    x = 1,020,813.70

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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.