Home / 488,371.18-673,830.48-281,702.75

Finding the Fourth Proportional to 488,371.18, 673,830.48 and 281,702.75

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Solution

The fourth proportional to 488,371.18, 673,830.48 and 281,702.75 is: 388,679.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,371.18 : 673,830.48 = 281,702.75 : x
  2. Step 2: Convert to fraction form
    488,371.18/673,830.48 = 281,702.75/x
  3. Step 3: Cross multiply
    488,371.18x = 673,830.48 × 281,702.75
  4. Step 4: Simplify right side
    488,371.18x = 189,819,900,934.40
  5. Step 5: Solve for x
    x = 189,819,900,934.40/488,371.18
  6. Step 6: Final answer
    x = 388,679.57

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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.