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Finding the Fourth Proportional to 666,533.24, 919,813.35 and 360,608.66

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Solution

The fourth proportional to 666,533.24, 919,813.35 and 360,608.66 is: 497,638.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,533.24 : 919,813.35 = 360,608.66 : x
  2. Step 2: Convert to fraction form
    666,533.24/919,813.35 = 360,608.66/x
  3. Step 3: Cross multiply
    666,533.24x = 919,813.35 × 360,608.66
  4. Step 4: Simplify right side
    666,533.24x = 331,692,659,593.61
  5. Step 5: Solve for x
    x = 331,692,659,593.61/666,533.24
  6. Step 6: Final answer
    x = 497,638.59

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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.