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Finding the Fourth Proportional to 666,197.02, 919,328.97 and 379,809.34

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Solution

The fourth proportional to 666,197.02, 919,328.97 and 379,809.34 is: 524,123.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,197.02 : 919,328.97 = 379,809.34 : x
  2. Step 2: Convert to fraction form
    666,197.02/919,328.97 = 379,809.34/x
  3. Step 3: Cross multiply
    666,197.02x = 919,328.97 × 379,809.34
  4. Step 4: Simplify right side
    666,197.02x = 349,169,729,338.58
  5. Step 5: Solve for x
    x = 349,169,729,338.58/666,197.02
  6. Step 6: Final answer
    x = 524,123.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.