Home / 1,851,990.18-2,791,866.30-1,728,540.90

Finding the Fourth Proportional to 1,851,990.18, 2,791,866.30 and 1,728,540.90

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Solution

The fourth proportional to 1,851,990.18, 2,791,866.30 and 1,728,540.90 is: 2,605,767.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851,990.18 : 2,791,866.30 = 1,728,540.90 : x
  2. Step 2: Convert to fraction form
    1,851,990.18/2,791,866.30 = 1,728,540.90/x
  3. Step 3: Cross multiply
    1,851,990.18x = 2,791,866.30 × 1,728,540.90
  4. Step 4: Simplify right side
    1,851,990.18x = 4,825,855,086,881.67
  5. Step 5: Solve for x
    x = 4,825,855,086,881.67/1,851,990.18
  6. Step 6: Final answer
    x = 2,605,767.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.