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Finding the Fourth Proportional to 608,604.71, 912,990.15 and 253,535.70

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Solution

The fourth proportional to 608,604.71, 912,990.15 and 253,535.70 is: 380,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,604.71 : 912,990.15 = 253,535.70 : x
  2. Step 2: Convert to fraction form
    608,604.71/912,990.15 = 253,535.70/x
  3. Step 3: Cross multiply
    608,604.71x = 912,990.15 × 253,535.70
  4. Step 4: Simplify right side
    608,604.71x = 231,475,591,424.11
  5. Step 5: Solve for x
    x = 231,475,591,424.11/608,604.71
  6. Step 6: Final answer
    x = 380,338.15

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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.