Home / 780,180.71-1,170,609.17-275,102.51

Finding the Fourth Proportional to 780,180.71, 1,170,609.17 and 275,102.51

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Solution

The fourth proportional to 780,180.71, 1,170,609.17 and 275,102.51 is: 412,772.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,180.71 : 1,170,609.17 = 275,102.51 : x
  2. Step 2: Convert to fraction form
    780,180.71/1,170,609.17 = 275,102.51/x
  3. Step 3: Cross multiply
    780,180.71x = 1,170,609.17 × 275,102.51
  4. Step 4: Simplify right side
    780,180.71x = 322,037,513,667.46
  5. Step 5: Solve for x
    x = 322,037,513,667.46/780,180.71
  6. Step 6: Final answer
    x = 412,772.98

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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.