Home / 1,161,118.56-1,602,318.16-644,843.20

Finding the Fourth Proportional to 1,161,118.56, 1,602,318.16 and 644,843.20

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Solution

The fourth proportional to 1,161,118.56, 1,602,318.16 and 644,843.20 is: 889,869.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,118.56 : 1,602,318.16 = 644,843.20 : x
  2. Step 2: Convert to fraction form
    1,161,118.56/1,602,318.16 = 644,843.20/x
  3. Step 3: Cross multiply
    1,161,118.56x = 1,602,318.16 × 644,843.20
  4. Step 4: Simplify right side
    1,161,118.56x = 1,033,243,969,712.51
  5. Step 5: Solve for x
    x = 1,033,243,969,712.51/1,161,118.56
  6. Step 6: Final answer
    x = 889,869.48

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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.