Home / 1,223,015.49-1,687,704.53-679,186.08

Finding the Fourth Proportional to 1,223,015.49, 1,687,704.53 and 679,186.08

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Solution

The fourth proportional to 1,223,015.49, 1,687,704.53 and 679,186.08 is: 937,245.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,015.49 : 1,687,704.53 = 679,186.08 : x
  2. Step 2: Convert to fraction form
    1,223,015.49/1,687,704.53 = 679,186.08/x
  3. Step 3: Cross multiply
    1,223,015.49x = 1,687,704.53 × 679,186.08
  4. Step 4: Simplify right side
    1,223,015.49x = 1,146,265,420,533.01
  5. Step 5: Solve for x
    x = 1,146,265,420,533.01/1,223,015.49
  6. Step 6: Final answer
    x = 937,245.22

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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.