Home / 820,221.48-1,131,874.02-457,626.60

Finding the Fourth Proportional to 820,221.48, 1,131,874.02 and 457,626.60

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Solution

The fourth proportional to 820,221.48, 1,131,874.02 and 457,626.60 is: 631,507.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,221.48 : 1,131,874.02 = 457,626.60 : x
  2. Step 2: Convert to fraction form
    820,221.48/1,131,874.02 = 457,626.60/x
  3. Step 3: Cross multiply
    820,221.48x = 1,131,874.02 × 457,626.60
  4. Step 4: Simplify right side
    820,221.48x = 517,975,659,400.93
  5. Step 5: Solve for x
    x = 517,975,659,400.93/820,221.48
  6. Step 6: Final answer
    x = 631,507.06

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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.