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Finding the Fourth Proportional to 864,409.50, 1,296,621.54 and 303,444

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Solution

The fourth proportional to 864,409.50, 1,296,621.54 and 303,444 is: 455,168.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,409.50 : 1,296,621.54 = 303,444 : x
  2. Step 2: Convert to fraction form
    864,409.50/1,296,621.54 = 303,444/x
  3. Step 3: Cross multiply
    864,409.50x = 1,296,621.54 × 303,444
  4. Step 4: Simplify right side
    864,409.50x = 393,452,026,583.76
  5. Step 5: Solve for x
    x = 393,452,026,583.76/864,409.50
  6. Step 6: Final answer
    x = 455,168.56

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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.