Home / 851,122.20-1,276,727.02-220,041.48

Finding the Fourth Proportional to 851,122.20, 1,276,727.02 and 220,041.48

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Solution

The fourth proportional to 851,122.20, 1,276,727.02 and 220,041.48 is: 330,073.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,122.20 : 1,276,727.02 = 220,041.48 : x
  2. Step 2: Convert to fraction form
    851,122.20/1,276,727.02 = 220,041.48/x
  3. Step 3: Cross multiply
    851,122.20x = 1,276,727.02 × 220,041.48
  4. Step 4: Simplify right side
    851,122.20x = 280,932,903,036.79
  5. Step 5: Solve for x
    x = 280,932,903,036.79/851,122.20
  6. Step 6: Final answer
    x = 330,073.52

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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.