Home / 1,586,567.39-2,189,450.45-861,400.42

Finding the Fourth Proportional to 1,586,567.39, 2,189,450.45 and 861,400.42

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Solution

The fourth proportional to 1,586,567.39, 2,189,450.45 and 861,400.42 is: 1,188,725.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,567.39 : 2,189,450.45 = 861,400.42 : x
  2. Step 2: Convert to fraction form
    1,586,567.39/2,189,450.45 = 861,400.42/x
  3. Step 3: Cross multiply
    1,586,567.39x = 2,189,450.45 × 861,400.42
  4. Step 4: Simplify right side
    1,586,567.39x = 1,885,993,533,879.06
  5. Step 5: Solve for x
    x = 1,885,993,533,879.06/1,586,567.39
  6. Step 6: Final answer
    x = 1,188,725.77

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1.5x scale

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.