Home / 495,116.05-683,262.30-280,297.51

Finding the Fourth Proportional to 495,116.05, 683,262.30 and 280,297.51

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Solution

The fourth proportional to 495,116.05, 683,262.30 and 280,297.51 is: 386,811.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,116.05 : 683,262.30 = 280,297.51 : x
  2. Step 2: Convert to fraction form
    495,116.05/683,262.30 = 280,297.51/x
  3. Step 3: Cross multiply
    495,116.05x = 683,262.30 × 280,297.51
  4. Step 4: Simplify right side
    495,116.05x = 191,516,721,366.87
  5. Step 5: Solve for x
    x = 191,516,721,366.87/495,116.05
  6. Step 6: Final answer
    x = 386,811.78

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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.