Home / 1,129,131.96-1,691,483.52-654,820.80

Finding the Fourth Proportional to 1,129,131.96, 1,691,483.52 and 654,820.80

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Solution

The fourth proportional to 1,129,131.96, 1,691,483.52 and 654,820.80 is: 980,946.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,131.96 : 1,691,483.52 = 654,820.80 : x
  2. Step 2: Convert to fraction form
    1,129,131.96/1,691,483.52 = 654,820.80/x
  3. Step 3: Cross multiply
    1,129,131.96x = 1,691,483.52 × 654,820.80
  4. Step 4: Simplify right side
    1,129,131.96x = 1,107,618,591,753.22
  5. Step 5: Solve for x
    x = 1,107,618,591,753.22/1,129,131.96
  6. Step 6: Final answer
    x = 980,946.98

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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.