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Finding the Fourth Proportional to 608,604.95, 912,990.50 and 253,535.93

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Solution

The fourth proportional to 608,604.95, 912,990.50 and 253,535.93 is: 380,338.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,604.95 : 912,990.50 = 253,535.93 : x
  2. Step 2: Convert to fraction form
    608,604.95/912,990.50 = 253,535.93/x
  3. Step 3: Cross multiply
    608,604.95x = 912,990.50 × 253,535.93
  4. Step 4: Simplify right side
    608,604.95x = 231,475,889,666.03
  5. Step 5: Solve for x
    x = 231,475,889,666.03/608,604.95
  6. Step 6: Final answer
    x = 380,338.50

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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.