Home / 1,586,396.32-2,189,265-861,274.60

Finding the Fourth Proportional to 1,586,396.32, 2,189,265 and 861,274.60

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Solution

The fourth proportional to 1,586,396.32, 2,189,265 and 861,274.60 is: 1,188,579.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,396.32 : 2,189,265 = 861,274.60 : x
  2. Step 2: Convert to fraction form
    1,586,396.32/2,189,265 = 861,274.60/x
  3. Step 3: Cross multiply
    1,586,396.32x = 2,189,265 × 861,274.60
  4. Step 4: Simplify right side
    1,586,396.32x = 1,885,558,337,169
  5. Step 5: Solve for x
    x = 1,885,558,337,169/1,586,396.32
  6. Step 6: Final answer
    x = 1,188,579.62

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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.