Home / 495,200.31-683,379.28-291,259.86

Finding the Fourth Proportional to 495,200.31, 683,379.28 and 291,259.86

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Solution

The fourth proportional to 495,200.31, 683,379.28 and 291,259.86 is: 401,940.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,200.31 : 683,379.28 = 291,259.86 : x
  2. Step 2: Convert to fraction form
    495,200.31/683,379.28 = 291,259.86/x
  3. Step 3: Cross multiply
    495,200.31x = 683,379.28 × 291,259.86
  4. Step 4: Simplify right side
    495,200.31x = 199,040,953,419.70
  5. Step 5: Solve for x
    x = 199,040,953,419.70/495,200.31
  6. Step 6: Final answer
    x = 401,940.28

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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.