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Finding the Fourth Proportional to 662,912.80, 994,714.80 and 288,973.60

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Solution

The fourth proportional to 662,912.80, 994,714.80 and 288,973.60 is: 433,611.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,912.80 : 994,714.80 = 288,973.60 : x
  2. Step 2: Convert to fraction form
    662,912.80/994,714.80 = 288,973.60/x
  3. Step 3: Cross multiply
    662,912.80x = 994,714.80 × 288,973.60
  4. Step 4: Simplify right side
    662,912.80x = 287,446,316,729.28
  5. Step 5: Solve for x
    x = 287,446,316,729.28/662,912.80
  6. Step 6: Final answer
    x = 433,611.05

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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.