Home / 816,489.50-1,126,793.94-453,919.42

Finding the Fourth Proportional to 816,489.50, 1,126,793.94 and 453,919.42

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Solution

The fourth proportional to 816,489.50, 1,126,793.94 and 453,919.42 is: 626,430.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,489.50 : 1,126,793.94 = 453,919.42 : x
  2. Step 2: Convert to fraction form
    816,489.50/1,126,793.94 = 453,919.42/x
  3. Step 3: Cross multiply
    816,489.50x = 1,126,793.94 × 453,919.42
  4. Step 4: Simplify right side
    816,489.50x = 511,473,651,704.32
  5. Step 5: Solve for x
    x = 511,473,651,704.32/816,489.50
  6. Step 6: Final answer
    x = 626,430.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.