Home / 783,609.52-1,175,409.40-378,328.92

Finding the Fourth Proportional to 783,609.52, 1,175,409.40 and 378,328.92

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Solution

The fourth proportional to 783,609.52, 1,175,409.40 and 378,328.92 is: 567,491.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,609.52 : 1,175,409.40 = 378,328.92 : x
  2. Step 2: Convert to fraction form
    783,609.52/1,175,409.40 = 378,328.92/x
  3. Step 3: Cross multiply
    783,609.52x = 1,175,409.40 × 378,328.92
  4. Step 4: Simplify right side
    783,609.52x = 444,691,368,859.85
  5. Step 5: Solve for x
    x = 444,691,368,859.85/783,609.52
  6. Step 6: Final answer
    x = 567,491.02

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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.