Home / 670,656.68-1,005,899.25-221,266.34

Finding the Fourth Proportional to 670,656.68, 1,005,899.25 and 221,266.34

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Solution

The fourth proportional to 670,656.68, 1,005,899.25 and 221,266.34 is: 331,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,656.68 : 1,005,899.25 = 221,266.34 : x
  2. Step 2: Convert to fraction form
    670,656.68/1,005,899.25 = 221,266.34/x
  3. Step 3: Cross multiply
    670,656.68x = 1,005,899.25 × 221,266.34
  4. Step 4: Simplify right side
    670,656.68x = 222,571,645,456.25
  5. Step 5: Solve for x
    x = 222,571,645,456.25/670,656.68
  6. Step 6: Final answer
    x = 331,871.21

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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.