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Finding the Fourth Proportional to 608,476.25, 912,520.27 and 209,020.70

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Solution

The fourth proportional to 608,476.25, 912,520.27 and 209,020.70 is: 313,464.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,476.25 : 912,520.27 = 209,020.70 : x
  2. Step 2: Convert to fraction form
    608,476.25/912,520.27 = 209,020.70/x
  3. Step 3: Cross multiply
    608,476.25x = 912,520.27 × 209,020.70
  4. Step 4: Simplify right side
    608,476.25x = 190,735,625,599.59
  5. Step 5: Solve for x
    x = 190,735,625,599.59/608,476.25
  6. Step 6: Final answer
    x = 313,464.37

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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.