Home / 664,470.20-916,650.06-482,900.60

Finding the Fourth Proportional to 664,470.20, 916,650.06 and 482,900.60

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Solution

The fourth proportional to 664,470.20, 916,650.06 and 482,900.60 is: 666,171.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,470.20 : 916,650.06 = 482,900.60 : x
  2. Step 2: Convert to fraction form
    664,470.20/916,650.06 = 482,900.60/x
  3. Step 3: Cross multiply
    664,470.20x = 916,650.06 × 482,900.60
  4. Step 4: Simplify right side
    664,470.20x = 442,650,863,964.04
  5. Step 5: Solve for x
    x = 442,650,863,964.04/664,470.20
  6. Step 6: Final answer
    x = 666,171.13

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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.