Home / 670,498.20-1,005,808.08-221,220.36

Finding the Fourth Proportional to 670,498.20, 1,005,808.08 and 221,220.36

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Solution

The fourth proportional to 670,498.20, 1,005,808.08 and 221,220.36 is: 331,850.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,498.20 : 1,005,808.08 = 221,220.36 : x
  2. Step 2: Convert to fraction form
    670,498.20/1,005,808.08 = 221,220.36/x
  3. Step 3: Cross multiply
    670,498.20x = 1,005,808.08 × 221,220.36
  4. Step 4: Simplify right side
    670,498.20x = 222,505,225,548.51
  5. Step 5: Solve for x
    x = 222,505,225,548.51/670,498.20
  6. Step 6: Final answer
    x = 331,850.59

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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.