Home / 1,222,378.02-1,686,988.40-713,244.42

Finding the Fourth Proportional to 1,222,378.02, 1,686,988.40 and 713,244.42

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Solution

The fourth proportional to 1,222,378.02, 1,686,988.40 and 713,244.42 is: 984,339.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,378.02 : 1,686,988.40 = 713,244.42 : x
  2. Step 2: Convert to fraction form
    1,222,378.02/1,686,988.40 = 713,244.42/x
  3. Step 3: Cross multiply
    1,222,378.02x = 1,686,988.40 × 713,244.42
  4. Step 4: Simplify right side
    1,222,378.02x = 1,203,235,062,904.73
  5. Step 5: Solve for x
    x = 1,203,235,062,904.73/1,222,378.02
  6. Step 6: Final answer
    x = 984,339.58

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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.