Home / 495,115.05-683,260.92-280,296.51

Finding the Fourth Proportional to 495,115.05, 683,260.92 and 280,296.51

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Solution

The fourth proportional to 495,115.05, 683,260.92 and 280,296.51 is: 386,810.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,115.05 : 683,260.92 = 280,296.51 : x
  2. Step 2: Convert to fraction form
    495,115.05/683,260.92 = 280,296.51/x
  3. Step 3: Cross multiply
    495,115.05x = 683,260.92 × 280,296.51
  4. Step 4: Simplify right side
    495,115.05x = 191,515,651,295.39
  5. Step 5: Solve for x
    x = 191,515,651,295.39/495,115.05
  6. Step 6: Final answer
    x = 386,810.40

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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.