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Finding the Fourth Proportional to 666,294.58, 919,487.73 and 364,488.58

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Solution

The fourth proportional to 666,294.58, 919,487.73 and 364,488.58 is: 502,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,294.58 : 919,487.73 = 364,488.58 : x
  2. Step 2: Convert to fraction form
    666,294.58/919,487.73 = 364,488.58/x
  3. Step 3: Cross multiply
    666,294.58x = 919,487.73 × 364,488.58
  4. Step 4: Simplify right side
    666,294.58x = 335,142,777,035.12
  5. Step 5: Solve for x
    x = 335,142,777,035.12/666,294.58
  6. Step 6: Final answer
    x = 502,994.90

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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.