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Finding the Fourth Proportional to 888,086, 1,225,587.84 and 485,678

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Solution

The fourth proportional to 888,086, 1,225,587.84 and 485,678 is: 670,251.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,086 : 1,225,587.84 = 485,678 : x
  2. Step 2: Convert to fraction form
    888,086/1,225,587.84 = 485,678/x
  3. Step 3: Cross multiply
    888,086x = 1,225,587.84 × 485,678
  4. Step 4: Simplify right side
    888,086x = 595,241,050,955.52
  5. Step 5: Solve for x
    x = 595,241,050,955.52/888,086
  6. Step 6: Final answer
    x = 670,251.59

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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.