Home / 670,427.09-1,005,671.60-221,187.22

Finding the Fourth Proportional to 670,427.09, 1,005,671.60 and 221,187.22

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Solution

The fourth proportional to 670,427.09, 1,005,671.60 and 221,187.22 is: 331,791.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,427.09 : 1,005,671.60 = 221,187.22 : x
  2. Step 2: Convert to fraction form
    670,427.09/1,005,671.60 = 221,187.22/x
  3. Step 3: Cross multiply
    670,427.09x = 1,005,671.60 × 221,187.22
  4. Step 4: Simplify right side
    670,427.09x = 222,441,703,475.74
  5. Step 5: Solve for x
    x = 222,441,703,475.74/670,427.09
  6. Step 6: Final answer
    x = 331,791.05

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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.