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Finding the Fourth Proportional to 656,728.90, 985,020.45 and 183,462.10

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Solution

The fourth proportional to 656,728.90, 985,020.45 and 183,462.10 is: 275,172.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,728.90 : 985,020.45 = 183,462.10 : x
  2. Step 2: Convert to fraction form
    656,728.90/985,020.45 = 183,462.10/x
  3. Step 3: Cross multiply
    656,728.90x = 985,020.45 × 183,462.10
  4. Step 4: Simplify right side
    656,728.90x = 180,713,920,299.95
  5. Step 5: Solve for x
    x = 180,713,920,299.95/656,728.90
  6. Step 6: Final answer
    x = 275,172.78

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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.