Home / 783,723.78-1,081,656.97-477,977.62

Finding the Fourth Proportional to 783,723.78, 1,081,656.97 and 477,977.62

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Solution

The fourth proportional to 783,723.78, 1,081,656.97 and 477,977.62 is: 659,681.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,723.78 : 1,081,656.97 = 477,977.62 : x
  2. Step 2: Convert to fraction form
    783,723.78/1,081,656.97 = 477,977.62/x
  3. Step 3: Cross multiply
    783,723.78x = 1,081,656.97 × 477,977.62
  4. Step 4: Simplify right side
    783,723.78x = 517,007,824,177.01
  5. Step 5: Solve for x
    x = 517,007,824,177.01/783,723.78
  6. Step 6: Final answer
    x = 659,681.18

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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.