Home / 1,538,776.32-2,123,472-859,717.12

Finding the Fourth Proportional to 1,538,776.32, 2,123,472 and 859,717.12

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Solution

The fourth proportional to 1,538,776.32, 2,123,472 and 859,717.12 is: 1,186,387.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,776.32 : 2,123,472 = 859,717.12 : x
  2. Step 2: Convert to fraction form
    1,538,776.32/2,123,472 = 859,717.12/x
  3. Step 3: Cross multiply
    1,538,776.32x = 2,123,472 × 859,717.12
  4. Step 4: Simplify right side
    1,538,776.32x = 1,825,585,232,240.64
  5. Step 5: Solve for x
    x = 1,825,585,232,240.64/1,538,776.32
  6. Step 6: Final answer
    x = 1,186,387.66

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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.