Home / 1,388,102.16-1,915,545-767,930.22

Finding the Fourth Proportional to 1,388,102.16, 1,915,545 and 767,930.22

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Solution

The fourth proportional to 1,388,102.16, 1,915,545 and 767,930.22 is: 1,059,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,102.16 : 1,915,545 = 767,930.22 : x
  2. Step 2: Convert to fraction form
    1,388,102.16/1,915,545 = 767,930.22/x
  3. Step 3: Cross multiply
    1,388,102.16x = 1,915,545 × 767,930.22
  4. Step 4: Simplify right side
    1,388,102.16x = 1,471,004,893,269.90
  5. Step 5: Solve for x
    x = 1,471,004,893,269.90/1,388,102.16
  6. Step 6: Final answer
    x = 1,059,723.80

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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.