Home / 648,464.40-972,178.20-274,179.60

Finding the Fourth Proportional to 648,464.40, 972,178.20 and 274,179.60

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Solution

The fourth proportional to 648,464.40, 972,178.20 and 274,179.60 is: 411,050.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,464.40 : 972,178.20 = 274,179.60 : x
  2. Step 2: Convert to fraction form
    648,464.40/972,178.20 = 274,179.60/x
  3. Step 3: Cross multiply
    648,464.40x = 972,178.20 × 274,179.60
  4. Step 4: Simplify right side
    648,464.40x = 266,551,430,004.72
  5. Step 5: Solve for x
    x = 266,551,430,004.72/648,464.40
  6. Step 6: Final answer
    x = 411,050.21

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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.