Home / 853,087.77-1,176,720.42-648,690.60

Finding the Fourth Proportional to 853,087.77, 1,176,720.42 and 648,690.60

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Solution

The fourth proportional to 853,087.77, 1,176,720.42 and 648,690.60 is: 894,781.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,087.77 : 1,176,720.42 = 648,690.60 : x
  2. Step 2: Convert to fraction form
    853,087.77/1,176,720.42 = 648,690.60/x
  3. Step 3: Cross multiply
    853,087.77x = 1,176,720.42 × 648,690.60
  4. Step 4: Simplify right side
    853,087.77x = 763,327,475,282.05
  5. Step 5: Solve for x
    x = 763,327,475,282.05/853,087.77
  6. Step 6: Final answer
    x = 894,781.88

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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.