Home / 836,387.73-1,255,212.54-387,423.59

Finding the Fourth Proportional to 836,387.73, 1,255,212.54 and 387,423.59

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Solution

The fourth proportional to 836,387.73, 1,255,212.54 and 387,423.59 is: 581,427.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,387.73 : 1,255,212.54 = 387,423.59 : x
  2. Step 2: Convert to fraction form
    836,387.73/1,255,212.54 = 387,423.59/x
  3. Step 3: Cross multiply
    836,387.73x = 1,255,212.54 × 387,423.59
  4. Step 4: Simplify right side
    836,387.73x = 486,298,942,183.76
  5. Step 5: Solve for x
    x = 486,298,942,183.76/836,387.73
  6. Step 6: Final answer
    x = 581,427.64

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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.