Home / 670,275.68-1,005,200.40-220,912.80

Finding the Fourth Proportional to 670,275.68, 1,005,200.40 and 220,912.80

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Solution

The fourth proportional to 670,275.68, 1,005,200.40 and 220,912.80 is: 331,298.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,275.68 : 1,005,200.40 = 220,912.80 : x
  2. Step 2: Convert to fraction form
    670,275.68/1,005,200.40 = 220,912.80/x
  3. Step 3: Cross multiply
    670,275.68x = 1,005,200.40 × 220,912.80
  4. Step 4: Simplify right side
    670,275.68x = 222,061,634,925.12
  5. Step 5: Solve for x
    x = 222,061,634,925.12/670,275.68
  6. Step 6: Final answer
    x = 331,298.96

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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.