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Finding the Fourth Proportional to 648,952.80, 973,429.20 and 274,927.20

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Solution

The fourth proportional to 648,952.80, 973,429.20 and 274,927.20 is: 412,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,952.80 : 973,429.20 = 274,927.20 : x
  2. Step 2: Convert to fraction form
    648,952.80/973,429.20 = 274,927.20/x
  3. Step 3: Cross multiply
    648,952.80x = 973,429.20 × 274,927.20
  4. Step 4: Simplify right side
    648,952.80x = 267,622,164,354.24
  5. Step 5: Solve for x
    x = 267,622,164,354.24/648,952.80
  6. Step 6: Final answer
    x = 412,390.80

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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.