Home / 418,629.70-627,944.55-222,021.70

Finding the Fourth Proportional to 418,629.70, 627,944.55 and 222,021.70

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Solution

The fourth proportional to 418,629.70, 627,944.55 and 222,021.70 is: 333,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,629.70 : 627,944.55 = 222,021.70 : x
  2. Step 2: Convert to fraction form
    418,629.70/627,944.55 = 222,021.70/x
  3. Step 3: Cross multiply
    418,629.70x = 627,944.55 × 222,021.70
  4. Step 4: Simplify right side
    418,629.70x = 139,417,316,496.74
  5. Step 5: Solve for x
    x = 139,417,316,496.74/418,629.70
  6. Step 6: Final answer
    x = 333,032.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.