Home / 5,678,538.80-7,839,920.76-3,614,719.28

Finding the Fourth Proportional to 5,678,538.80, 7,839,920.76 and 3,614,719.28

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Solution

The fourth proportional to 5,678,538.80, 7,839,920.76 and 3,614,719.28 is: 4,990,564.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678,538.80 : 7,839,920.76 = 3,614,719.28 : x
  2. Step 2: Convert to fraction form
    5,678,538.80/7,839,920.76 = 3,614,719.28/x
  3. Step 3: Cross multiply
    5,678,538.80x = 7,839,920.76 × 3,614,719.28
  4. Step 4: Simplify right side
    5,678,538.80x = 28,339,112,724,844.25
  5. Step 5: Solve for x
    x = 28,339,112,724,844.25/5,678,538.80
  6. Step 6: Final answer
    x = 4,990,564.25

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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.