Home / 879,600.20-1,213,788.84-487,104.96

Finding the Fourth Proportional to 879,600.20, 1,213,788.84 and 487,104.96

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Solution

The fourth proportional to 879,600.20, 1,213,788.84 and 487,104.96 is: 672,171.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,600.20 : 1,213,788.84 = 487,104.96 : x
  2. Step 2: Convert to fraction form
    879,600.20/1,213,788.84 = 487,104.96/x
  3. Step 3: Cross multiply
    879,600.20x = 1,213,788.84 × 487,104.96
  4. Step 4: Simplify right side
    879,600.20x = 591,242,564,356.65
  5. Step 5: Solve for x
    x = 591,242,564,356.65/879,600.20
  6. Step 6: Final answer
    x = 672,171.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.