Home / 422,278.16-634,427.74-270,772.07

Finding the Fourth Proportional to 422,278.16, 634,427.74 and 270,772.07

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Solution

The fourth proportional to 422,278.16, 634,427.74 and 270,772.07 is: 406,806.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,278.16 : 634,427.74 = 270,772.07 : x
  2. Step 2: Convert to fraction form
    422,278.16/634,427.74 = 270,772.07/x
  3. Step 3: Cross multiply
    422,278.16x = 634,427.74 × 270,772.07
  4. Step 4: Simplify right side
    422,278.16x = 171,785,313,938.77
  5. Step 5: Solve for x
    x = 171,785,313,938.77/422,278.16
  6. Step 6: Final answer
    x = 406,806.06

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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.