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Finding the Fourth Proportional to 666,427.66, 999,028.20 and 362,377.60

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Solution

The fourth proportional to 666,427.66, 999,028.20 and 362,377.60 is: 543,232.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,427.66 : 999,028.20 = 362,377.60 : x
  2. Step 2: Convert to fraction form
    666,427.66/999,028.20 = 362,377.60/x
  3. Step 3: Cross multiply
    666,427.66x = 999,028.20 × 362,377.60
  4. Step 4: Simplify right side
    666,427.66x = 362,025,441,448.32
  5. Step 5: Solve for x
    x = 362,025,441,448.32/666,427.66
  6. Step 6: Final answer
    x = 543,232.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.