Home / 1,371,188.48-1,892,015.16-861,530

Finding the Fourth Proportional to 1,371,188.48, 1,892,015.16 and 861,530

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Solution

The fourth proportional to 1,371,188.48, 1,892,015.16 and 861,530 is: 1,188,770.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,188.48 : 1,892,015.16 = 861,530 : x
  2. Step 2: Convert to fraction form
    1,371,188.48/1,892,015.16 = 861,530/x
  3. Step 3: Cross multiply
    1,371,188.48x = 1,892,015.16 × 861,530
  4. Step 4: Simplify right side
    1,371,188.48x = 1,630,027,820,794.80
  5. Step 5: Solve for x
    x = 1,630,027,820,794.80/1,371,188.48
  6. Step 6: Final answer
    x = 1,188,770.07

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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.