Home / 495,078.38-682,988.36-322,956.72

Finding the Fourth Proportional to 495,078.38, 682,988.36 and 322,956.72

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Solution

The fourth proportional to 495,078.38, 682,988.36 and 322,956.72 is: 445,536.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,078.38 : 682,988.36 = 322,956.72 : x
  2. Step 2: Convert to fraction form
    495,078.38/682,988.36 = 322,956.72/x
  3. Step 3: Cross multiply
    495,078.38x = 682,988.36 × 322,956.72
  4. Step 4: Simplify right side
    495,078.38x = 220,575,678,929.00
  5. Step 5: Solve for x
    x = 220,575,678,929.00/495,078.38
  6. Step 6: Final answer
    x = 445,536.89

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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.