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Finding the Fourth Proportional to 655,455.42, 983,170.38 and 295,427.88

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Solution

The fourth proportional to 655,455.42, 983,170.38 and 295,427.88 is: 443,136.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,455.42 : 983,170.38 = 295,427.88 : x
  2. Step 2: Convert to fraction form
    655,455.42/983,170.38 = 295,427.88/x
  3. Step 3: Cross multiply
    655,455.42x = 983,170.38 × 295,427.88
  4. Step 4: Simplify right side
    655,455.42x = 290,455,941,042.19
  5. Step 5: Solve for x
    x = 290,455,941,042.19/655,455.42
  6. Step 6: Final answer
    x = 443,136.07

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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.