Home / 1,977,420.20-2,729,131.05-1,252,335.33

Finding the Fourth Proportional to 1,977,420.20, 2,729,131.05 and 1,252,335.33

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Solution

The fourth proportional to 1,977,420.20, 2,729,131.05 and 1,252,335.33 is: 1,728,407.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977,420.20 : 2,729,131.05 = 1,252,335.33 : x
  2. Step 2: Convert to fraction form
    1,977,420.20/2,729,131.05 = 1,252,335.33/x
  3. Step 3: Cross multiply
    1,977,420.20x = 2,729,131.05 × 1,252,335.33
  4. Step 4: Simplify right side
    1,977,420.20x = 3,417,787,234,115.00
  5. Step 5: Solve for x
    x = 3,417,787,234,115.00/1,977,420.20
  6. Step 6: Final answer
    x = 1,728,407.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.