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Finding the Fourth Proportional to 666,404.84, 919,661.64 and 364,598.84

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Solution

The fourth proportional to 666,404.84, 919,661.64 and 364,598.84 is: 503,158.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,404.84 : 919,661.64 = 364,598.84 : x
  2. Step 2: Convert to fraction form
    666,404.84/919,661.64 = 364,598.84/x
  3. Step 3: Cross multiply
    666,404.84x = 919,661.64 × 364,598.84
  4. Step 4: Simplify right side
    666,404.84x = 335,307,567,136.50
  5. Step 5: Solve for x
    x = 335,307,567,136.50/666,404.84
  6. Step 6: Final answer
    x = 503,158.96

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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.