Home / 1,269,889.12-1,752,525.84-839,422.72

Finding the Fourth Proportional to 1,269,889.12, 1,752,525.84 and 839,422.72

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Solution

The fourth proportional to 1,269,889.12, 1,752,525.84 and 839,422.72 is: 1,158,455.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,889.12 : 1,752,525.84 = 839,422.72 : x
  2. Step 2: Convert to fraction form
    1,269,889.12/1,752,525.84 = 839,422.72/x
  3. Step 3: Cross multiply
    1,269,889.12x = 1,752,525.84 × 839,422.72
  4. Step 4: Simplify right side
    1,269,889.12x = 1,471,110,007,483.08
  5. Step 5: Solve for x
    x = 1,471,110,007,483.08/1,269,889.12
  6. Step 6: Final answer
    x = 1,158,455.48

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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.