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Finding the Fourth Proportional to 888,394.52, 1,225,980.78 and 480,496.80

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Solution

The fourth proportional to 888,394.52, 1,225,980.78 and 480,496.80 is: 663,083.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,394.52 : 1,225,980.78 = 480,496.80 : x
  2. Step 2: Convert to fraction form
    888,394.52/1,225,980.78 = 480,496.80/x
  3. Step 3: Cross multiply
    888,394.52x = 1,225,980.78 × 480,496.80
  4. Step 4: Simplify right side
    888,394.52x = 589,079,841,651.50
  5. Step 5: Solve for x
    x = 589,079,841,651.50/888,394.52
  6. Step 6: Final answer
    x = 663,083.61

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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.