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Finding the Fourth Proportional to 817,328.64, 1,226,100.06 and 270,039.22

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Solution

The fourth proportional to 817,328.64, 1,226,100.06 and 270,039.22 is: 405,094.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,328.64 : 1,226,100.06 = 270,039.22 : x
  2. Step 2: Convert to fraction form
    817,328.64/1,226,100.06 = 270,039.22/x
  3. Step 3: Cross multiply
    817,328.64x = 1,226,100.06 × 270,039.22
  4. Step 4: Simplify right side
    817,328.64x = 331,095,103,844.35
  5. Step 5: Solve for x
    x = 331,095,103,844.35/817,328.64
  6. Step 6: Final answer
    x = 405,094.22

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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.