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Finding the Fourth Proportional to 864,409.96, 1,296,744.54 and 303,345.64

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Solution

The fourth proportional to 864,409.96, 1,296,744.54 and 303,345.64 is: 455,063.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,409.96 : 1,296,744.54 = 303,345.64 : x
  2. Step 2: Convert to fraction form
    864,409.96/1,296,744.54 = 303,345.64/x
  3. Step 3: Cross multiply
    864,409.96x = 1,296,744.54 × 303,345.64
  4. Step 4: Simplify right side
    864,409.96x = 393,361,802,402.81
  5. Step 5: Solve for x
    x = 393,361,802,402.81/864,409.96
  6. Step 6: Final answer
    x = 455,063.94

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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.