Home / 495,872.09-684,255.68-278,089.69

Finding the Fourth Proportional to 495,872.09, 684,255.68 and 278,089.69

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Solution

The fourth proportional to 495,872.09, 684,255.68 and 278,089.69 is: 383,736.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,872.09 : 684,255.68 = 278,089.69 : x
  2. Step 2: Convert to fraction form
    495,872.09/684,255.68 = 278,089.69/x
  3. Step 3: Cross multiply
    495,872.09x = 684,255.68 × 278,089.69
  4. Step 4: Simplify right side
    495,872.09x = 190,284,446,830.85
  5. Step 5: Solve for x
    x = 190,284,446,830.85/495,872.09
  6. Step 6: Final answer
    x = 383,736.96

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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.