Home / 3,900,809.70-5,851,105.20-1,770,890.40

Finding the Fourth Proportional to 3,900,809.70, 5,851,105.20 and 1,770,890.40

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Solution

The fourth proportional to 3,900,809.70, 5,851,105.20 and 1,770,890.40 is: 2,656,285.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900,809.70 : 5,851,105.20 = 1,770,890.40 : x
  2. Step 2: Convert to fraction form
    3,900,809.70/5,851,105.20 = 1,770,890.40/x
  3. Step 3: Cross multiply
    3,900,809.70x = 5,851,105.20 × 1,770,890.40
  4. Step 4: Simplify right side
    3,900,809.70x = 10,361,666,028,070.08
  5. Step 5: Solve for x
    x = 10,361,666,028,070.08/3,900,809.70
  6. Step 6: Final answer
    x = 2,656,285.96

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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.