Home / 780,328.91-1,170,493.37-219,363.41

Finding the Fourth Proportional to 780,328.91, 1,170,493.37 and 219,363.41

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Solution

The fourth proportional to 780,328.91, 1,170,493.37 and 219,363.41 is: 329,045.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,328.91 : 1,170,493.37 = 219,363.41 : x
  2. Step 2: Convert to fraction form
    780,328.91/1,170,493.37 = 219,363.41/x
  3. Step 3: Cross multiply
    780,328.91x = 1,170,493.37 × 219,363.41
  4. Step 4: Simplify right side
    780,328.91x = 256,763,417,025.59
  5. Step 5: Solve for x
    x = 256,763,417,025.59/780,328.91
  6. Step 6: Final answer
    x = 329,045.12

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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.