Home / 812,505.60-1,121,249.92-468,215.04

Finding the Fourth Proportional to 812,505.60, 1,121,249.92 and 468,215.04

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Solution

The fourth proportional to 812,505.60, 1,121,249.92 and 468,215.04 is: 646,132.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,505.60 : 1,121,249.92 = 468,215.04 : x
  2. Step 2: Convert to fraction form
    812,505.60/1,121,249.92 = 468,215.04/x
  3. Step 3: Cross multiply
    812,505.60x = 1,121,249.92 × 468,215.04
  4. Step 4: Simplify right side
    812,505.60x = 524,986,076,142.80
  5. Step 5: Solve for x
    x = 524,986,076,142.80/812,505.60
  6. Step 6: Final answer
    x = 646,132.26

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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.