Home / 548,827.25-823,236.14-428,984.88

Finding the Fourth Proportional to 548,827.25, 823,236.14 and 428,984.88

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Solution

The fourth proportional to 548,827.25, 823,236.14 and 428,984.88 is: 643,473.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,827.25 : 823,236.14 = 428,984.88 : x
  2. Step 2: Convert to fraction form
    548,827.25/823,236.14 = 428,984.88/x
  3. Step 3: Cross multiply
    548,827.25x = 823,236.14 × 428,984.88
  4. Step 4: Simplify right side
    548,827.25x = 353,155,854,714.89
  5. Step 5: Solve for x
    x = 353,155,854,714.89/548,827.25
  6. Step 6: Final answer
    x = 643,473.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.