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Finding the Fourth Proportional to 620,613.52, 856,447.46 and 352,341.52

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Solution

The fourth proportional to 620,613.52, 856,447.46 and 352,341.52 is: 486,231.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,613.52 : 856,447.46 = 352,341.52 : x
  2. Step 2: Convert to fraction form
    620,613.52/856,447.46 = 352,341.52/x
  3. Step 3: Cross multiply
    620,613.52x = 856,447.46 × 352,341.52
  4. Step 4: Simplify right side
    620,613.52x = 301,761,999,856.54
  5. Step 5: Solve for x
    x = 301,761,999,856.54/620,613.52
  6. Step 6: Final answer
    x = 486,231.75

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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.