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Finding the Fourth Proportional to 522,729.36, 783,757.08 and 223,405.20

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Solution

The fourth proportional to 522,729.36, 783,757.08 and 223,405.20 is: 334,963.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,729.36 : 783,757.08 = 223,405.20 : x
  2. Step 2: Convert to fraction form
    522,729.36/783,757.08 = 223,405.20/x
  3. Step 3: Cross multiply
    522,729.36x = 783,757.08 × 223,405.20
  4. Step 4: Simplify right side
    522,729.36x = 175,095,407,208.82
  5. Step 5: Solve for x
    x = 175,095,407,208.82/522,729.36
  6. Step 6: Final answer
    x = 334,963.79

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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.