Home / 1,096,986.78-1,513,232.48-638,049.69

Finding the Fourth Proportional to 1,096,986.78, 1,513,232.48 and 638,049.69

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Solution

The fourth proportional to 1,096,986.78, 1,513,232.48 and 638,049.69 is: 880,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,096,986.78 : 1,513,232.48 = 638,049.69 : x
  2. Step 2: Convert to fraction form
    1,096,986.78/1,513,232.48 = 638,049.69/x
  3. Step 3: Cross multiply
    1,096,986.78x = 1,513,232.48 × 638,049.69
  4. Step 4: Simplify right side
    1,096,986.78x = 965,517,516,357.06
  5. Step 5: Solve for x
    x = 965,517,516,357.06/1,096,986.78
  6. Step 6: Final answer
    x = 880,154.20

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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.