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Finding the Fourth Proportional to 666,462.26, 919,695.04 and 380,074.52

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Solution

The fourth proportional to 666,462.26, 919,695.04 and 380,074.52 is: 524,489.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,462.26 : 919,695.04 = 380,074.52 : x
  2. Step 2: Convert to fraction form
    666,462.26/919,695.04 = 380,074.52/x
  3. Step 3: Cross multiply
    666,462.26x = 919,695.04 × 380,074.52
  4. Step 4: Simplify right side
    666,462.26x = 349,552,645,325.72
  5. Step 5: Solve for x
    x = 349,552,645,325.72/666,462.26
  6. Step 6: Final answer
    x = 524,489.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.