Home / 780,325.91-1,170,488.87-219,360.41

Finding the Fourth Proportional to 780,325.91, 1,170,488.87 and 219,360.41

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Solution

The fourth proportional to 780,325.91, 1,170,488.87 and 219,360.41 is: 329,040.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,325.91 : 1,170,488.87 = 219,360.41 : x
  2. Step 2: Convert to fraction form
    780,325.91/1,170,488.87 = 219,360.41/x
  3. Step 3: Cross multiply
    780,325.91x = 1,170,488.87 × 219,360.41
  4. Step 4: Simplify right side
    780,325.91x = 256,758,911,474.39
  5. Step 5: Solve for x
    x = 256,758,911,474.39/780,325.91
  6. Step 6: Final answer
    x = 329,040.61

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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.