Home / 893,138.40-1,339,707.60-725,176.80

Finding the Fourth Proportional to 893,138.40, 1,339,707.60 and 725,176.80

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Solution

The fourth proportional to 893,138.40, 1,339,707.60 and 725,176.80 is: 1,087,765.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,138.40 : 1,339,707.60 = 725,176.80 : x
  2. Step 2: Convert to fraction form
    893,138.40/1,339,707.60 = 725,176.80/x
  3. Step 3: Cross multiply
    893,138.40x = 1,339,707.60 × 725,176.80
  4. Step 4: Simplify right side
    893,138.40x = 971,524,870,303.68
  5. Step 5: Solve for x
    x = 971,524,870,303.68/893,138.40
  6. Step 6: Final answer
    x = 1,087,765.20

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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.