Home / 547,177.98-821,055.87-388,280.73

Finding the Fourth Proportional to 547,177.98, 821,055.87 and 388,280.73

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Solution

The fourth proportional to 547,177.98, 821,055.87 and 388,280.73 is: 582,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,177.98 : 821,055.87 = 388,280.73 : x
  2. Step 2: Convert to fraction form
    547,177.98/821,055.87 = 388,280.73/x
  3. Step 3: Cross multiply
    547,177.98x = 821,055.87 × 388,280.73
  4. Step 4: Simplify right side
    547,177.98x = 318,800,172,574.39
  5. Step 5: Solve for x
    x = 318,800,172,574.39/547,177.98
  6. Step 6: Final answer
    x = 582,626.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.