Home / 783,112.80-1,174,669.20-543,964.35

Finding the Fourth Proportional to 783,112.80, 1,174,669.20 and 543,964.35

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Solution

The fourth proportional to 783,112.80, 1,174,669.20 and 543,964.35 is: 815,946.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,112.80 : 1,174,669.20 = 543,964.35 : x
  2. Step 2: Convert to fraction form
    783,112.80/1,174,669.20 = 543,964.35/x
  3. Step 3: Cross multiply
    783,112.80x = 1,174,669.20 × 543,964.35
  4. Step 4: Simplify right side
    783,112.80x = 638,978,167,843.02
  5. Step 5: Solve for x
    x = 638,978,167,843.02/783,112.80
  6. Step 6: Final answer
    x = 815,946.53

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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.