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Finding the Fourth Proportional to 662,805.40, 994,467.30 and 242,123.80

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Solution

The fourth proportional to 662,805.40, 994,467.30 and 242,123.80 is: 363,280.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,805.40 : 994,467.30 = 242,123.80 : x
  2. Step 2: Convert to fraction form
    662,805.40/994,467.30 = 242,123.80/x
  3. Step 3: Cross multiply
    662,805.40x = 994,467.30 × 242,123.80
  4. Step 4: Simplify right side
    662,805.40x = 240,784,201,651.74
  5. Step 5: Solve for x
    x = 240,784,201,651.74/662,805.40
  6. Step 6: Final answer
    x = 363,280.39

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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.