Home / 1,189,257.80-1,784,379.18-656,731.40

Finding the Fourth Proportional to 1,189,257.80, 1,784,379.18 and 656,731.40

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Solution

The fourth proportional to 1,189,257.80, 1,784,379.18 and 656,731.40 is: 985,369.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,257.80 : 1,784,379.18 = 656,731.40 : x
  2. Step 2: Convert to fraction form
    1,189,257.80/1,784,379.18 = 656,731.40/x
  3. Step 3: Cross multiply
    1,189,257.80x = 1,784,379.18 × 656,731.40
  4. Step 4: Simplify right side
    1,189,257.80x = 1,171,857,837,012.25
  5. Step 5: Solve for x
    x = 1,171,857,837,012.25/1,189,257.80
  6. Step 6: Final answer
    x = 985,369.06

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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.