Home / 1,538,288.84-2,122,938.59-849,960.78

Finding the Fourth Proportional to 1,538,288.84, 2,122,938.59 and 849,960.78

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Solution

The fourth proportional to 1,538,288.84, 2,122,938.59 and 849,960.78 is: 1,173,001.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,288.84 : 2,122,938.59 = 849,960.78 : x
  2. Step 2: Convert to fraction form
    1,538,288.84/2,122,938.59 = 849,960.78/x
  3. Step 3: Cross multiply
    1,538,288.84x = 2,122,938.59 × 849,960.78
  4. Step 4: Simplify right side
    1,538,288.84x = 1,804,414,527,637.68
  5. Step 5: Solve for x
    x = 1,804,414,527,637.68/1,538,288.84
  6. Step 6: Final answer
    x = 1,173,001.12

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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.