Home / 1,091,285.68-1,505,736.72-661,671.40

Finding the Fourth Proportional to 1,091,285.68, 1,505,736.72 and 661,671.40

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Solution

The fourth proportional to 1,091,285.68, 1,505,736.72 and 661,671.40 is: 912,962.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,285.68 : 1,505,736.72 = 661,671.40 : x
  2. Step 2: Convert to fraction form
    1,091,285.68/1,505,736.72 = 661,671.40/x
  3. Step 3: Cross multiply
    1,091,285.68x = 1,505,736.72 × 661,671.40
  4. Step 4: Simplify right side
    1,091,285.68x = 996,302,923,553.81
  5. Step 5: Solve for x
    x = 996,302,923,553.81/1,091,285.68
  6. Step 6: Final answer
    x = 912,962.52

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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.