Home / 878,170.92-1,211,860.14-496,189.50

Finding the Fourth Proportional to 878,170.92, 1,211,860.14 and 496,189.50

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Solution

The fourth proportional to 878,170.92, 1,211,860.14 and 496,189.50 is: 684,732.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,170.92 : 1,211,860.14 = 496,189.50 : x
  2. Step 2: Convert to fraction form
    878,170.92/1,211,860.14 = 496,189.50/x
  3. Step 3: Cross multiply
    878,170.92x = 1,211,860.14 × 496,189.50
  4. Step 4: Simplify right side
    878,170.92x = 601,312,276,936.53
  5. Step 5: Solve for x
    x = 601,312,276,936.53/878,170.92
  6. Step 6: Final answer
    x = 684,732.62

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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.