Home / 820,147.16-1,131,777.42-480,841.40

Finding the Fourth Proportional to 820,147.16, 1,131,777.42 and 480,841.40

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Solution

The fourth proportional to 820,147.16, 1,131,777.42 and 480,841.40 is: 663,546.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,147.16 : 1,131,777.42 = 480,841.40 : x
  2. Step 2: Convert to fraction form
    820,147.16/1,131,777.42 = 480,841.40/x
  3. Step 3: Cross multiply
    820,147.16x = 1,131,777.42 × 480,841.40
  4. Step 4: Simplify right side
    820,147.16x = 544,205,439,121.19
  5. Step 5: Solve for x
    x = 544,205,439,121.19/820,147.16
  6. Step 6: Final answer
    x = 663,546.09

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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.