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Finding the Fourth Proportional to 475,803.60, 656,607.96 and 274,599.60

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Solution

The fourth proportional to 475,803.60, 656,607.96 and 274,599.60 is: 378,946.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,803.60 : 656,607.96 = 274,599.60 : x
  2. Step 2: Convert to fraction form
    475,803.60/656,607.96 = 274,599.60/x
  3. Step 3: Cross multiply
    475,803.60x = 656,607.96 × 274,599.60
  4. Step 4: Simplify right side
    475,803.60x = 180,304,283,172.82
  5. Step 5: Solve for x
    x = 180,304,283,172.82/475,803.60
  6. Step 6: Final answer
    x = 378,946.87

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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.