Home / 495,447.90-683,727.06-280,632.42

Finding the Fourth Proportional to 495,447.90, 683,727.06 and 280,632.42

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Solution

The fourth proportional to 495,447.90, 683,727.06 and 280,632.42 is: 387,277.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,447.90 : 683,727.06 = 280,632.42 : x
  2. Step 2: Convert to fraction form
    495,447.90/683,727.06 = 280,632.42/x
  3. Step 3: Cross multiply
    495,447.90x = 683,727.06 × 280,632.42
  4. Step 4: Simplify right side
    495,447.90x = 191,875,979,467.29
  5. Step 5: Solve for x
    x = 191,875,979,467.29/495,447.90
  6. Step 6: Final answer
    x = 387,277.81

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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.