Home / 820,648.26-1,132,683.55-481,225.86

Finding the Fourth Proportional to 820,648.26, 1,132,683.55 and 481,225.86

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Solution

The fourth proportional to 820,648.26, 1,132,683.55 and 481,225.86 is: 664,202.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,648.26 : 1,132,683.55 = 481,225.86 : x
  2. Step 2: Convert to fraction form
    820,648.26/1,132,683.55 = 481,225.86/x
  3. Step 3: Cross multiply
    820,648.26x = 1,132,683.55 × 481,225.86
  4. Step 4: Simplify right side
    820,648.26x = 545,076,614,451.46
  5. Step 5: Solve for x
    x = 545,076,614,451.46/820,648.26
  6. Step 6: Final answer
    x = 664,202.49

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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.