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Finding the Fourth Proportional to 648,349.59, 972,650.45 and 248,961

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Solution

The fourth proportional to 648,349.59, 972,650.45 and 248,961 is: 373,489.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,349.59 : 972,650.45 = 248,961 : x
  2. Step 2: Convert to fraction form
    648,349.59/972,650.45 = 248,961/x
  3. Step 3: Cross multiply
    648,349.59x = 972,650.45 × 248,961
  4. Step 4: Simplify right side
    648,349.59x = 242,152,028,682.45
  5. Step 5: Solve for x
    x = 242,152,028,682.45/648,349.59
  6. Step 6: Final answer
    x = 373,489.91

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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.