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Finding the Fourth Proportional to 646,745.62, 892,536.57 and 360,265.90

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Solution

The fourth proportional to 646,745.62, 892,536.57 and 360,265.90 is: 497,182.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,745.62 : 892,536.57 = 360,265.90 : x
  2. Step 2: Convert to fraction form
    646,745.62/892,536.57 = 360,265.90/x
  3. Step 3: Cross multiply
    646,745.62x = 892,536.57 × 360,265.90
  4. Step 4: Simplify right side
    646,745.62x = 321,550,490,673.96
  5. Step 5: Solve for x
    x = 321,550,490,673.96/646,745.62
  6. Step 6: Final answer
    x = 497,182.32

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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.