Home / 621,830.20-933,129.30-247,814.20

Finding the Fourth Proportional to 621,830.20, 933,129.30 and 247,814.20

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Solution

The fourth proportional to 621,830.20, 933,129.30 and 247,814.20 is: 371,874.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,830.20 : 933,129.30 = 247,814.20 : x
  2. Step 2: Convert to fraction form
    621,830.20/933,129.30 = 247,814.20/x
  3. Step 3: Cross multiply
    621,830.20x = 933,129.30 × 247,814.20
  4. Step 4: Simplify right side
    621,830.20x = 231,242,690,976.06
  5. Step 5: Solve for x
    x = 231,242,690,976.06/621,830.20
  6. Step 6: Final answer
    x = 371,874.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.