Home / 670,330.68-1,005,282.37-220,967.79

Finding the Fourth Proportional to 670,330.68, 1,005,282.37 and 220,967.79

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Solution

The fourth proportional to 670,330.68, 1,005,282.37 and 220,967.79 is: 331,381.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,330.68 : 1,005,282.37 = 220,967.79 : x
  2. Step 2: Convert to fraction form
    670,330.68/1,005,282.37 = 220,967.79/x
  3. Step 3: Cross multiply
    670,330.68x = 1,005,282.37 × 220,967.79
  4. Step 4: Simplify right side
    670,330.68x = 222,135,023,624.86
  5. Step 5: Solve for x
    x = 222,135,023,624.86/670,330.68
  6. Step 6: Final answer
    x = 331,381.26

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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.