Home / 780,316.62-1,170,552.81-211,706.64

Finding the Fourth Proportional to 780,316.62, 1,170,552.81 and 211,706.64

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Solution

The fourth proportional to 780,316.62, 1,170,552.81 and 211,706.64 is: 317,581.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,316.62 : 1,170,552.81 = 211,706.64 : x
  2. Step 2: Convert to fraction form
    780,316.62/1,170,552.81 = 211,706.64/x
  3. Step 3: Cross multiply
    780,316.62x = 1,170,552.81 × 211,706.64
  4. Step 4: Simplify right side
    780,316.62x = 247,813,802,347.66
  5. Step 5: Solve for x
    x = 247,813,802,347.66/780,316.62
  6. Step 6: Final answer
    x = 317,581.09

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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.