Home / 805,690.92-1,208,288.88-265,847.52

Finding the Fourth Proportional to 805,690.92, 1,208,288.88 and 265,847.52

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Solution

The fourth proportional to 805,690.92, 1,208,288.88 and 265,847.52 is: 398,689.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,690.92 : 1,208,288.88 = 265,847.52 : x
  2. Step 2: Convert to fraction form
    805,690.92/1,208,288.88 = 265,847.52/x
  3. Step 3: Cross multiply
    805,690.92x = 1,208,288.88 × 265,847.52
  4. Step 4: Simplify right side
    805,690.92x = 321,220,602,191.58
  5. Step 5: Solve for x
    x = 321,220,602,191.58/805,690.92
  6. Step 6: Final answer
    x = 398,689.61

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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.