Home / 780,251.50-1,170,417.78-247,814.20

Finding the Fourth Proportional to 780,251.50, 1,170,417.78 and 247,814.20

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Solution

The fourth proportional to 780,251.50, 1,170,417.78 and 247,814.20 is: 371,734.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,251.50 : 1,170,417.78 = 247,814.20 : x
  2. Step 2: Convert to fraction form
    780,251.50/1,170,417.78 = 247,814.20/x
  3. Step 3: Cross multiply
    780,251.50x = 1,170,417.78 × 247,814.20
  4. Step 4: Simplify right side
    780,251.50x = 290,046,145,816.48
  5. Step 5: Solve for x
    x = 290,046,145,816.48/780,251.50
  6. Step 6: Final answer
    x = 371,734.17

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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.