Home / 1,387,655.36-1,914,858.40-843,716.16

Finding the Fourth Proportional to 1,387,655.36, 1,914,858.40 and 843,716.16

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Solution

The fourth proportional to 1,387,655.36, 1,914,858.40 and 843,716.16 is: 1,164,263.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,655.36 : 1,914,858.40 = 843,716.16 : x
  2. Step 2: Convert to fraction form
    1,387,655.36/1,914,858.40 = 843,716.16/x
  3. Step 3: Cross multiply
    1,387,655.36x = 1,914,858.40 × 843,716.16
  4. Step 4: Simplify right side
    1,387,655.36x = 1,615,596,976,191.74
  5. Step 5: Solve for x
    x = 1,615,596,976,191.74/1,387,655.36
  6. Step 6: Final answer
    x = 1,164,263.85

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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.