Home / 3,138,189.40-4,707,284.10-863,709.40

Finding the Fourth Proportional to 3,138,189.40, 4,707,284.10 and 863,709.40

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Solution

The fourth proportional to 3,138,189.40, 4,707,284.10 and 863,709.40 is: 1,295,564.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,189.40 : 4,707,284.10 = 863,709.40 : x
  2. Step 2: Convert to fraction form
    3,138,189.40/4,707,284.10 = 863,709.40/x
  3. Step 3: Cross multiply
    3,138,189.40x = 4,707,284.10 × 863,709.40
  4. Step 4: Simplify right side
    3,138,189.40x = 4,065,725,525,640.54
  5. Step 5: Solve for x
    x = 4,065,725,525,640.54/3,138,189.40
  6. Step 6: Final answer
    x = 1,295,564.10

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Similar ratio
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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.