Home / 1,390,221.20-2,083,776.60-591,366.80

Finding the Fourth Proportional to 1,390,221.20, 2,083,776.60 and 591,366.80

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Solution

The fourth proportional to 1,390,221.20, 2,083,776.60 and 591,366.80 is: 886,388.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,221.20 : 2,083,776.60 = 591,366.80 : x
  2. Step 2: Convert to fraction form
    1,390,221.20/2,083,776.60 = 591,366.80/x
  3. Step 3: Cross multiply
    1,390,221.20x = 2,083,776.60 × 591,366.80
  4. Step 4: Simplify right side
    1,390,221.20x = 1,232,276,299,856.88
  5. Step 5: Solve for x
    x = 1,232,276,299,856.88/1,390,221.20
  6. Step 6: Final answer
    x = 886,388.66

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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.