Home / 1,091,214.72-1,505,952-661,512.96

Finding the Fourth Proportional to 1,091,214.72, 1,505,952 and 661,512.96

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Solution

The fourth proportional to 1,091,214.72, 1,505,952 and 661,512.96 is: 912,933.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,214.72 : 1,505,952 = 661,512.96 : x
  2. Step 2: Convert to fraction form
    1,091,214.72/1,505,952 = 661,512.96/x
  3. Step 3: Cross multiply
    1,091,214.72x = 1,505,952 × 661,512.96
  4. Step 4: Simplify right side
    1,091,214.72x = 996,206,765,137.92
  5. Step 5: Solve for x
    x = 996,206,765,137.92/1,091,214.72
  6. Step 6: Final answer
    x = 912,933.77

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1.5x scale

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.