Home / 670,412.60-1,005,351.60-221,008.40

Finding the Fourth Proportional to 670,412.60, 1,005,351.60 and 221,008.40

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Solution

The fourth proportional to 670,412.60, 1,005,351.60 and 221,008.40 is: 331,424.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,412.60 : 1,005,351.60 = 221,008.40 : x
  2. Step 2: Convert to fraction form
    670,412.60/1,005,351.60 = 221,008.40/x
  3. Step 3: Cross multiply
    670,412.60x = 1,005,351.60 × 221,008.40
  4. Step 4: Simplify right side
    670,412.60x = 222,191,148,553.44
  5. Step 5: Solve for x
    x = 222,191,148,553.44/670,412.60
  6. Step 6: Final answer
    x = 331,424.48

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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.