Home / 495,244.12-682,212.64-422,409.73

Finding the Fourth Proportional to 495,244.12, 682,212.64 and 422,409.73

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Solution

The fourth proportional to 495,244.12, 682,212.64 and 422,409.73 is: 581,881.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,244.12 : 682,212.64 = 422,409.73 : x
  2. Step 2: Convert to fraction form
    495,244.12/682,212.64 = 422,409.73/x
  3. Step 3: Cross multiply
    495,244.12x = 682,212.64 × 422,409.73
  4. Step 4: Simplify right side
    495,244.12x = 288,173,253,653.92
  5. Step 5: Solve for x
    x = 288,173,253,653.92/495,244.12
  6. Step 6: Final answer
    x = 581,881.23

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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.