Home / 1,241,868.70-1,861,818.90-680,903.20

Finding the Fourth Proportional to 1,241,868.70, 1,861,818.90 and 680,903.20

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Solution

The fourth proportional to 1,241,868.70, 1,861,818.90 and 680,903.20 is: 1,020,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,868.70 : 1,861,818.90 = 680,903.20 : x
  2. Step 2: Convert to fraction form
    1,241,868.70/1,861,818.90 = 680,903.20/x
  3. Step 3: Cross multiply
    1,241,868.70x = 1,861,818.90 × 680,903.20
  4. Step 4: Simplify right side
    1,241,868.70x = 1,267,718,446,830.48
  5. Step 5: Solve for x
    x = 1,267,718,446,830.48/1,241,868.70
  6. Step 6: Final answer
    x = 1,020,815.20

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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.