Home / 1,538,257.42-2,122,811.54-849,912.15

Finding the Fourth Proportional to 1,538,257.42, 2,122,811.54 and 849,912.15

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Solution

The fourth proportional to 1,538,257.42, 2,122,811.54 and 849,912.15 is: 1,172,887.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,257.42 : 2,122,811.54 = 849,912.15 : x
  2. Step 2: Convert to fraction form
    1,538,257.42/2,122,811.54 = 849,912.15/x
  3. Step 3: Cross multiply
    1,538,257.42x = 2,122,811.54 × 849,912.15
  4. Step 4: Simplify right side
    1,538,257.42x = 1,804,203,326,904.36
  5. Step 5: Solve for x
    x = 1,804,203,326,904.36/1,538,257.42
  6. Step 6: Final answer
    x = 1,172,887.78

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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.