Home / 780,235.28-1,170,233.36-247,687.28

Finding the Fourth Proportional to 780,235.28, 1,170,233.36 and 247,687.28

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Solution

The fourth proportional to 780,235.28, 1,170,233.36 and 247,687.28 is: 371,492.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,235.28 : 1,170,233.36 = 247,687.28 : x
  2. Step 2: Convert to fraction form
    780,235.28/1,170,233.36 = 247,687.28/x
  3. Step 3: Cross multiply
    780,235.28x = 1,170,233.36 × 247,687.28
  4. Step 4: Simplify right side
    780,235.28x = 289,851,917,903.66
  5. Step 5: Solve for x
    x = 289,851,917,903.66/780,235.28
  6. Step 6: Final answer
    x = 371,492.97

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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.