Home / 667,721.80-1,001,582.70-194,422.60

Finding the Fourth Proportional to 667,721.80, 1,001,582.70 and 194,422.60

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Solution

The fourth proportional to 667,721.80, 1,001,582.70 and 194,422.60 is: 291,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,721.80 : 1,001,582.70 = 194,422.60 : x
  2. Step 2: Convert to fraction form
    667,721.80/1,001,582.70 = 194,422.60/x
  3. Step 3: Cross multiply
    667,721.80x = 1,001,582.70 × 194,422.60
  4. Step 4: Simplify right side
    667,721.80x = 194,730,312,649.02
  5. Step 5: Solve for x
    x = 194,730,312,649.02/667,721.80
  6. Step 6: Final answer
    x = 291,633.90

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1.5x scale

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.