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Finding the Fourth Proportional to 646,703.10, 892,465.92 and 360,227.88

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Solution

The fourth proportional to 646,703.10, 892,465.92 and 360,227.88 is: 497,123.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,703.10 : 892,465.92 = 360,227.88 : x
  2. Step 2: Convert to fraction form
    646,703.10/892,465.92 = 360,227.88/x
  3. Step 3: Cross multiply
    646,703.10x = 892,465.92 × 360,227.88
  4. Step 4: Simplify right side
    646,703.10x = 321,491,106,333.85
  5. Step 5: Solve for x
    x = 321,491,106,333.85/646,703.10
  6. Step 6: Final answer
    x = 497,123.19

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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.