Home / 820,161.74-1,131,770.07-452,642.16

Finding the Fourth Proportional to 820,161.74, 1,131,770.07 and 452,642.16

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Solution

The fourth proportional to 820,161.74, 1,131,770.07 and 452,642.16 is: 624,616.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,161.74 : 1,131,770.07 = 452,642.16 : x
  2. Step 2: Convert to fraction form
    820,161.74/1,131,770.07 = 452,642.16/x
  3. Step 3: Cross multiply
    820,161.74x = 1,131,770.07 × 452,642.16
  4. Step 4: Simplify right side
    820,161.74x = 512,286,849,108.15
  5. Step 5: Solve for x
    x = 512,286,849,108.15/820,161.74
  6. Step 6: Final answer
    x = 624,616.86

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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.