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Finding the Fourth Proportional to 662,978.49, 994,531.85 and 263,529.63

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Solution

The fourth proportional to 662,978.49, 994,531.85 and 263,529.63 is: 395,319.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,978.49 : 994,531.85 = 263,529.63 : x
  2. Step 2: Convert to fraction form
    662,978.49/994,531.85 = 263,529.63/x
  3. Step 3: Cross multiply
    662,978.49x = 994,531.85 × 263,529.63
  4. Step 4: Simplify right side
    662,978.49x = 262,088,609,136.07
  5. Step 5: Solve for x
    x = 262,088,609,136.07/662,978.49
  6. Step 6: Final answer
    x = 395,319.93

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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.