Home / 805,434.75-1,111,471.52-442,856.07

Finding the Fourth Proportional to 805,434.75, 1,111,471.52 and 442,856.07

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Solution

The fourth proportional to 805,434.75, 1,111,471.52 and 442,856.07 is: 611,125.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,434.75 : 1,111,471.52 = 442,856.07 : x
  2. Step 2: Convert to fraction form
    805,434.75/1,111,471.52 = 442,856.07/x
  3. Step 3: Cross multiply
    805,434.75x = 1,111,471.52 × 442,856.07
  4. Step 4: Simplify right side
    805,434.75x = 492,221,907,049.85
  5. Step 5: Solve for x
    x = 492,221,907,049.85/805,434.75
  6. Step 6: Final answer
    x = 611,125.74

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.