Home / 628,716.52-867,742.02-370,578.39

Finding the Fourth Proportional to 628,716.52, 867,742.02 and 370,578.39

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Solution

The fourth proportional to 628,716.52, 867,742.02 and 370,578.39 is: 511,464.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,716.52 : 867,742.02 = 370,578.39 : x
  2. Step 2: Convert to fraction form
    628,716.52/867,742.02 = 370,578.39/x
  3. Step 3: Cross multiply
    628,716.52x = 867,742.02 × 370,578.39
  4. Step 4: Simplify right side
    628,716.52x = 321,566,441,812.84
  5. Step 5: Solve for x
    x = 321,566,441,812.84/628,716.52
  6. Step 6: Final answer
    x = 511,464.92

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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.