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Finding the Fourth Proportional to 608,383.54, 912,596.51 and 209,021.41

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Solution

The fourth proportional to 608,383.54, 912,596.51 and 209,021.41 is: 313,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,383.54 : 912,596.51 = 209,021.41 : x
  2. Step 2: Convert to fraction form
    608,383.54/912,596.51 = 209,021.41/x
  3. Step 3: Cross multiply
    608,383.54x = 912,596.51 × 209,021.41
  4. Step 4: Simplify right side
    608,383.54x = 190,752,209,281.28
  5. Step 5: Solve for x
    x = 190,752,209,281.28/608,383.54
  6. Step 6: Final answer
    x = 313,539.40

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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.