Home / 878,375.32-1,212,023.89-496,262.68

Finding the Fourth Proportional to 878,375.32, 1,212,023.89 and 496,262.68

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Solution

The fourth proportional to 878,375.32, 1,212,023.89 and 496,262.68 is: 684,766.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,375.32 : 1,212,023.89 = 496,262.68 : x
  2. Step 2: Convert to fraction form
    878,375.32/1,212,023.89 = 496,262.68/x
  3. Step 3: Cross multiply
    878,375.32x = 1,212,023.89 × 496,262.68
  4. Step 4: Simplify right side
    878,375.32x = 601,482,221,394.11
  5. Step 5: Solve for x
    x = 601,482,221,394.11/878,375.32
  6. Step 6: Final answer
    x = 684,766.76

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1.5x scale

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.