Home / 780,245.28-1,170,248.36-247,697.28

Finding the Fourth Proportional to 780,245.28, 1,170,248.36 and 247,697.28

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Solution

The fourth proportional to 780,245.28, 1,170,248.36 and 247,697.28 is: 371,507.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,245.28 : 1,170,248.36 = 247,697.28 : x
  2. Step 2: Convert to fraction form
    780,245.28/1,170,248.36 = 247,697.28/x
  3. Step 3: Cross multiply
    780,245.28x = 1,170,248.36 × 247,697.28
  4. Step 4: Simplify right side
    780,245.28x = 289,867,335,696.46
  5. Step 5: Solve for x
    x = 289,867,335,696.46/780,245.28
  6. Step 6: Final answer
    x = 371,507.96

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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.