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Finding the Fourth Proportional to 608,857.86, 913,267.96 and 289,239.81

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Solution

The fourth proportional to 608,857.86, 913,267.96 and 289,239.81 is: 433,850.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,857.86 : 913,267.96 = 289,239.81 : x
  2. Step 2: Convert to fraction form
    608,857.86/913,267.96 = 289,239.81/x
  3. Step 3: Cross multiply
    608,857.86x = 913,267.96 × 289,239.81
  4. Step 4: Simplify right side
    608,857.86x = 264,153,445,216.95
  5. Step 5: Solve for x
    x = 264,153,445,216.95/608,857.86
  6. Step 6: Final answer
    x = 433,850.76

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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.