Home / 1,270,739.08-1,753,607.31-689,949.43

Finding the Fourth Proportional to 1,270,739.08, 1,753,607.31 and 689,949.43

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Solution

The fourth proportional to 1,270,739.08, 1,753,607.31 and 689,949.43 is: 952,123.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,739.08 : 1,753,607.31 = 689,949.43 : x
  2. Step 2: Convert to fraction form
    1,270,739.08/1,753,607.31 = 689,949.43/x
  3. Step 3: Cross multiply
    1,270,739.08x = 1,753,607.31 × 689,949.43
  4. Step 4: Simplify right side
    1,270,739.08x = 1,209,900,363,978.33
  5. Step 5: Solve for x
    x = 1,209,900,363,978.33/1,270,739.08
  6. Step 6: Final answer
    x = 952,123.36

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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.