Home / 1,605,119.76-2,215,083.41-916,882.71

Finding the Fourth Proportional to 1,605,119.76, 2,215,083.41 and 916,882.71

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Solution

The fourth proportional to 1,605,119.76, 2,215,083.41 and 916,882.71 is: 1,265,308.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,119.76 : 2,215,083.41 = 916,882.71 : x
  2. Step 2: Convert to fraction form
    1,605,119.76/2,215,083.41 = 916,882.71/x
  3. Step 3: Cross multiply
    1,605,119.76x = 2,215,083.41 × 916,882.71
  4. Step 4: Simplify right side
    1,605,119.76x = 2,030,971,675,252.43
  5. Step 5: Solve for x
    x = 2,030,971,675,252.43/1,605,119.76
  6. Step 6: Final answer
    x = 1,265,308.50

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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.