Home / 1,160,219.54-1,601,078.82-643,943.13

Finding the Fourth Proportional to 1,160,219.54, 1,601,078.82 and 643,943.13

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Solution

The fourth proportional to 1,160,219.54, 1,601,078.82 and 643,943.13 is: 888,628.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160,219.54 : 1,601,078.82 = 643,943.13 : x
  2. Step 2: Convert to fraction form
    1,160,219.54/1,601,078.82 = 643,943.13/x
  3. Step 3: Cross multiply
    1,160,219.54x = 1,601,078.82 × 643,943.13
  4. Step 4: Simplify right side
    1,160,219.54x = 1,031,003,706,727.51
  5. Step 5: Solve for x
    x = 1,031,003,706,727.51/1,160,219.54
  6. Step 6: Final answer
    x = 888,628.12

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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.