Home / 670,231.20-1,005,492.60-220,875.60

Finding the Fourth Proportional to 670,231.20, 1,005,492.60 and 220,875.60

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Solution

The fourth proportional to 670,231.20, 1,005,492.60 and 220,875.60 is: 331,361.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,231.20 : 1,005,492.60 = 220,875.60 : x
  2. Step 2: Convert to fraction form
    670,231.20/1,005,492.60 = 220,875.60/x
  3. Step 3: Cross multiply
    670,231.20x = 1,005,492.60 × 220,875.60
  4. Step 4: Simplify right side
    670,231.20x = 222,088,781,320.56
  5. Step 5: Solve for x
    x = 222,088,781,320.56/670,231.20
  6. Step 6: Final answer
    x = 331,361.45

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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.