Home / 786,546.18-1,085,441.31-447,016.86

Finding the Fourth Proportional to 786,546.18, 1,085,441.31 and 447,016.86

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Solution

The fourth proportional to 786,546.18, 1,085,441.31 and 447,016.86 is: 616,887.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,546.18 : 1,085,441.31 = 447,016.86 : x
  2. Step 2: Convert to fraction form
    786,546.18/1,085,441.31 = 447,016.86/x
  3. Step 3: Cross multiply
    786,546.18x = 1,085,441.31 × 447,016.86
  4. Step 4: Simplify right side
    786,546.18x = 485,210,566,110.49
  5. Step 5: Solve for x
    x = 485,210,566,110.49/786,546.18
  6. Step 6: Final answer
    x = 616,887.58

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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.