Home / 780,239.68-1,170,400.02-247,802.38

Finding the Fourth Proportional to 780,239.68, 1,170,400.02 and 247,802.38

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Solution

The fourth proportional to 780,239.68, 1,170,400.02 and 247,802.38 is: 371,716.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,239.68 : 1,170,400.02 = 247,802.38 : x
  2. Step 2: Convert to fraction form
    780,239.68/1,170,400.02 = 247,802.38/x
  3. Step 3: Cross multiply
    780,239.68x = 1,170,400.02 × 247,802.38
  4. Step 4: Simplify right side
    780,239.68x = 290,027,910,508.05
  5. Step 5: Solve for x
    x = 290,027,910,508.05/780,239.68
  6. Step 6: Final answer
    x = 371,716.43

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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.