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Finding the Fourth Proportional to 666,364.13, 919,583.10 and 364,558.13

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Solution

The fourth proportional to 666,364.13, 919,583.10 and 364,558.13 is: 503,090.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,364.13 : 919,583.10 = 364,558.13 : x
  2. Step 2: Convert to fraction form
    666,364.13/919,583.10 = 364,558.13/x
  3. Step 3: Cross multiply
    666,364.13x = 919,583.10 × 364,558.13
  4. Step 4: Simplify right side
    666,364.13x = 335,241,490,717.69
  5. Step 5: Solve for x
    x = 335,241,490,717.69/666,364.13
  6. Step 6: Final answer
    x = 503,090.54

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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.