Home / 901,286.04-1,242,449.64-686,051.22

Finding the Fourth Proportional to 901,286.04, 1,242,449.64 and 686,051.22

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Solution

The fourth proportional to 901,286.04, 1,242,449.64 and 686,051.22 is: 945,742.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,286.04 : 1,242,449.64 = 686,051.22 : x
  2. Step 2: Convert to fraction form
    901,286.04/1,242,449.64 = 686,051.22/x
  3. Step 3: Cross multiply
    901,286.04x = 1,242,449.64 × 686,051.22
  4. Step 4: Simplify right side
    901,286.04x = 852,384,091,310.56
  5. Step 5: Solve for x
    x = 852,384,091,310.56/901,286.04
  6. Step 6: Final answer
    x = 945,742.03

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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.