Home / 916,560.80-1,375,035.60-276,887.60

Finding the Fourth Proportional to 916,560.80, 1,375,035.60 and 276,887.60

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Solution

The fourth proportional to 916,560.80, 1,375,035.60 and 276,887.60 is: 415,390.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,560.80 : 1,375,035.60 = 276,887.60 : x
  2. Step 2: Convert to fraction form
    916,560.80/1,375,035.60 = 276,887.60/x
  3. Step 3: Cross multiply
    916,560.80x = 1,375,035.60 × 276,887.60
  4. Step 4: Simplify right side
    916,560.80x = 380,730,307,198.56
  5. Step 5: Solve for x
    x = 380,730,307,198.56/916,560.80
  6. Step 6: Final answer
    x = 415,390.13

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1.5x scale

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.