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Finding the Fourth Proportional to 608,882.62, 913,305 and 289,264.50

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Solution

The fourth proportional to 608,882.62, 913,305 and 289,264.50 is: 433,887.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,882.62 : 913,305 = 289,264.50 : x
  2. Step 2: Convert to fraction form
    608,882.62/913,305 = 289,264.50/x
  3. Step 3: Cross multiply
    608,882.62x = 913,305 × 289,264.50
  4. Step 4: Simplify right side
    608,882.62x = 264,186,714,172.50
  5. Step 5: Solve for x
    x = 264,186,714,172.50/608,882.62
  6. Step 6: Final answer
    x = 433,887.76

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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.