Home / 1,186,704-1,637,659.40-642,839.82

Finding the Fourth Proportional to 1,186,704, 1,637,659.40 and 642,839.82

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Solution

The fourth proportional to 1,186,704, 1,637,659.40 and 642,839.82 is: 887,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,704 : 1,637,659.40 = 642,839.82 : x
  2. Step 2: Convert to fraction form
    1,186,704/1,637,659.40 = 642,839.82/x
  3. Step 3: Cross multiply
    1,186,704x = 1,637,659.40 × 642,839.82
  4. Step 4: Simplify right side
    1,186,704x = 1,052,752,673,917.31
  5. Step 5: Solve for x
    x = 1,052,752,673,917.31/1,186,704
  6. Step 6: Final answer
    x = 887,123.22

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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.