Home / 495,412.30-683,711.14-280,590.58

Finding the Fourth Proportional to 495,412.30, 683,711.14 and 280,590.58

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Solution

The fourth proportional to 495,412.30, 683,711.14 and 280,590.58 is: 387,238.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,412.30 : 683,711.14 = 280,590.58 : x
  2. Step 2: Convert to fraction form
    495,412.30/683,711.14 = 280,590.58/x
  3. Step 3: Cross multiply
    495,412.30x = 683,711.14 × 280,590.58
  4. Step 4: Simplify right side
    495,412.30x = 191,842,902,914.31
  5. Step 5: Solve for x
    x = 191,842,902,914.31/495,412.30
  6. Step 6: Final answer
    x = 387,238.88

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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.