Home / 1,186,816.56-1,637,804.66-642,965.93

Finding the Fourth Proportional to 1,186,816.56, 1,637,804.66 and 642,965.93

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Solution

The fourth proportional to 1,186,816.56, 1,637,804.66 and 642,965.93 is: 887,291.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,816.56 : 1,637,804.66 = 642,965.93 : x
  2. Step 2: Convert to fraction form
    1,186,816.56/1,637,804.66 = 642,965.93/x
  3. Step 3: Cross multiply
    1,186,816.56x = 1,637,804.66 × 642,965.93
  4. Step 4: Simplify right side
    1,186,816.56x = 1,053,052,590,123.51
  5. Step 5: Solve for x
    x = 1,053,052,590,123.51/1,186,816.56
  6. Step 6: Final answer
    x = 887,291.79

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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.