Home / 836,421.54-1,254,656.97-205,335.42

Finding the Fourth Proportional to 836,421.54, 1,254,656.97 and 205,335.42

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Solution

The fourth proportional to 836,421.54, 1,254,656.97 and 205,335.42 is: 308,009.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,421.54 : 1,254,656.97 = 205,335.42 : x
  2. Step 2: Convert to fraction form
    836,421.54/1,254,656.97 = 205,335.42/x
  3. Step 3: Cross multiply
    836,421.54x = 1,254,656.97 × 205,335.42
  4. Step 4: Simplify right side
    836,421.54x = 257,625,515,890.88
  5. Step 5: Solve for x
    x = 257,625,515,890.88/836,421.54
  6. Step 6: Final answer
    x = 308,009.18

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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.