Home / 1,422,324.38-1,962,807.65-818,712.38

Finding the Fourth Proportional to 1,422,324.38, 1,962,807.65 and 818,712.38

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Solution

The fourth proportional to 1,422,324.38, 1,962,807.65 and 818,712.38 is: 1,129,823.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,324.38 : 1,962,807.65 = 818,712.38 : x
  2. Step 2: Convert to fraction form
    1,422,324.38/1,962,807.65 = 818,712.38/x
  3. Step 3: Cross multiply
    1,422,324.38x = 1,962,807.65 × 818,712.38
  4. Step 4: Simplify right side
    1,422,324.38x = 1,606,974,908,706.11
  5. Step 5: Solve for x
    x = 1,606,974,908,706.11/1,422,324.38
  6. Step 6: Final answer
    x = 1,129,823.08

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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.