Home / 495,262.56-683,455.32-280,397.04

Finding the Fourth Proportional to 495,262.56, 683,455.32 and 280,397.04

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Solution

The fourth proportional to 495,262.56, 683,455.32 and 280,397.04 is: 386,943.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,262.56 : 683,455.32 = 280,397.04 : x
  2. Step 2: Convert to fraction form
    495,262.56/683,455.32 = 280,397.04/x
  3. Step 3: Cross multiply
    495,262.56x = 683,455.32 × 280,397.04
  4. Step 4: Simplify right side
    495,262.56x = 191,638,848,700.25
  5. Step 5: Solve for x
    x = 191,638,848,700.25/495,262.56
  6. Step 6: Final answer
    x = 386,943.94

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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.