Home / 495,717.60-684,090.99-280,872.21

Finding the Fourth Proportional to 495,717.60, 684,090.99 and 280,872.21

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Solution

The fourth proportional to 495,717.60, 684,090.99 and 280,872.21 is: 387,604.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,717.60 : 684,090.99 = 280,872.21 : x
  2. Step 2: Convert to fraction form
    495,717.60/684,090.99 = 280,872.21/x
  3. Step 3: Cross multiply
    495,717.60x = 684,090.99 × 280,872.21
  4. Step 4: Simplify right side
    495,717.60x = 192,142,148,202.39
  5. Step 5: Solve for x
    x = 192,142,148,202.39/495,717.60
  6. Step 6: Final answer
    x = 387,604.05

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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.