Home / 1,253,041.92-1,728,786.24-709,123.68

Finding the Fourth Proportional to 1,253,041.92, 1,728,786.24 and 709,123.68

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Solution

The fourth proportional to 1,253,041.92, 1,728,786.24 and 709,123.68 is: 978,357.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,041.92 : 1,728,786.24 = 709,123.68 : x
  2. Step 2: Convert to fraction form
    1,253,041.92/1,728,786.24 = 709,123.68/x
  3. Step 3: Cross multiply
    1,253,041.92x = 1,728,786.24 × 709,123.68
  4. Step 4: Simplify right side
    1,253,041.92x = 1,225,923,260,442.16
  5. Step 5: Solve for x
    x = 1,225,923,260,442.16/1,253,041.92
  6. Step 6: Final answer
    x = 978,357.74

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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.