Home / 2,145,065.92-3,217,608.64-725,129.60

Finding the Fourth Proportional to 2,145,065.92, 3,217,608.64 and 725,129.60

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Solution

The fourth proportional to 2,145,065.92, 3,217,608.64 and 725,129.60 is: 1,087,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,065.92 : 3,217,608.64 = 725,129.60 : x
  2. Step 2: Convert to fraction form
    2,145,065.92/3,217,608.64 = 725,129.60/x
  3. Step 3: Cross multiply
    2,145,065.92x = 3,217,608.64 × 725,129.60
  4. Step 4: Simplify right side
    2,145,065.92x = 2,333,183,266,079.74
  5. Step 5: Solve for x
    x = 2,333,183,266,079.74/2,145,065.92
  6. Step 6: Final answer
    x = 1,087,697.70

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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.