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Finding the Fourth Proportional to 651,879.90, 977,236.65 and 252,387.90

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Solution

The fourth proportional to 651,879.90, 977,236.65 and 252,387.90 is: 378,356.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,879.90 : 977,236.65 = 252,387.90 : x
  2. Step 2: Convert to fraction form
    651,879.90/977,236.65 = 252,387.90/x
  3. Step 3: Cross multiply
    651,879.90x = 977,236.65 × 252,387.90
  4. Step 4: Simplify right side
    651,879.90x = 246,642,705,896.54
  5. Step 5: Solve for x
    x = 246,642,705,896.54/651,879.90
  6. Step 6: Final answer
    x = 378,356.05

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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.