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Finding the Fourth Proportional to 666,735.17, 920,094.46 and 360,811.49

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Solution

The fourth proportional to 666,735.17, 920,094.46 and 360,811.49 is: 497,919.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,735.17 : 920,094.46 = 360,811.49 : x
  2. Step 2: Convert to fraction form
    666,735.17/920,094.46 = 360,811.49/x
  3. Step 3: Cross multiply
    666,735.17x = 920,094.46 × 360,811.49
  4. Step 4: Simplify right side
    666,735.17x = 331,980,654,451.55
  5. Step 5: Solve for x
    x = 331,980,654,451.55/666,735.17
  6. Step 6: Final answer
    x = 497,919.82

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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.