Home / 878,923.56-1,212,469.38-556,089.96

Finding the Fourth Proportional to 878,923.56, 1,212,469.38 and 556,089.96

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Solution

The fourth proportional to 878,923.56, 1,212,469.38 and 556,089.96 is: 767,122.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,923.56 : 1,212,469.38 = 556,089.96 : x
  2. Step 2: Convert to fraction form
    878,923.56/1,212,469.38 = 556,089.96/x
  3. Step 3: Cross multiply
    878,923.56x = 1,212,469.38 × 556,089.96
  4. Step 4: Simplify right side
    878,923.56x = 674,242,049,025.43
  5. Step 5: Solve for x
    x = 674,242,049,025.43/878,923.56
  6. Step 6: Final answer
    x = 767,122.51

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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.