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Finding the Fourth Proportional to 620,631.22, 930,194.32 and 283,209.52

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Solution

The fourth proportional to 620,631.22, 930,194.32 and 283,209.52 is: 424,470.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,631.22 : 930,194.32 = 283,209.52 : x
  2. Step 2: Convert to fraction form
    620,631.22/930,194.32 = 283,209.52/x
  3. Step 3: Cross multiply
    620,631.22x = 930,194.32 × 283,209.52
  4. Step 4: Simplify right side
    620,631.22x = 263,439,886,873.93
  5. Step 5: Solve for x
    x = 263,439,886,873.93/620,631.22
  6. Step 6: Final answer
    x = 424,470.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.