Home / 646,465.20-892,153.89-359,979.27

Finding the Fourth Proportional to 646,465.20, 892,153.89 and 359,979.27

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Solution

The fourth proportional to 646,465.20, 892,153.89 and 359,979.27 is: 496,789.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,465.20 : 892,153.89 = 359,979.27 : x
  2. Step 2: Convert to fraction form
    646,465.20/892,153.89 = 359,979.27/x
  3. Step 3: Cross multiply
    646,465.20x = 892,153.89 × 359,979.27
  4. Step 4: Simplify right side
    646,465.20x = 321,156,906,049.86
  5. Step 5: Solve for x
    x = 321,156,906,049.86/646,465.20
  6. Step 6: Final answer
    x = 496,789.16

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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.