Home / 979,879.46-1,467,253.08-641,856.74

Finding the Fourth Proportional to 979,879.46, 1,467,253.08 and 641,856.74

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Solution

The fourth proportional to 979,879.46, 1,467,253.08 and 641,856.74 is: 961,104.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,879.46 : 1,467,253.08 = 641,856.74 : x
  2. Step 2: Convert to fraction form
    979,879.46/1,467,253.08 = 641,856.74/x
  3. Step 3: Cross multiply
    979,879.46x = 1,467,253.08 × 641,856.74
  4. Step 4: Simplify right side
    979,879.46x = 941,766,271,347.49
  5. Step 5: Solve for x
    x = 941,766,271,347.49/979,879.46
  6. Step 6: Final answer
    x = 961,104.21

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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.