Home / 780,399.84-1,170,600.24-219,434.34

Finding the Fourth Proportional to 780,399.84, 1,170,600.24 and 219,434.34

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Solution

The fourth proportional to 780,399.84, 1,170,600.24 and 219,434.34 is: 329,151.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,399.84 : 1,170,600.24 = 219,434.34 : x
  2. Step 2: Convert to fraction form
    780,399.84/1,170,600.24 = 219,434.34/x
  3. Step 3: Cross multiply
    780,399.84x = 1,170,600.24 × 219,434.34
  4. Step 4: Simplify right side
    780,399.84x = 256,869,891,068.24
  5. Step 5: Solve for x
    x = 256,869,891,068.24/780,399.84
  6. Step 6: Final answer
    x = 329,151.64

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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.