Home / 2,919,782.40-4,376,563.20-1,121,971.20

Finding the Fourth Proportional to 2,919,782.40, 4,376,563.20 and 1,121,971.20

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Solution

The fourth proportional to 2,919,782.40, 4,376,563.20 and 1,121,971.20 is: 1,681,761.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919,782.40 : 4,376,563.20 = 1,121,971.20 : x
  2. Step 2: Convert to fraction form
    2,919,782.40/4,376,563.20 = 1,121,971.20/x
  3. Step 3: Cross multiply
    2,919,782.40x = 4,376,563.20 × 1,121,971.20
  4. Step 4: Simplify right side
    2,919,782.40x = 4,910,377,865,379.84
  5. Step 5: Solve for x
    x = 4,910,377,865,379.84/2,919,782.40
  6. Step 6: Final answer
    x = 1,681,761.58

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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.