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Finding the Fourth Proportional to 453,605.94, 679,631.31 and 320,247.54

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Solution

The fourth proportional to 453,605.94, 679,631.31 and 320,247.54 is: 479,822.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,605.94 : 679,631.31 = 320,247.54 : x
  2. Step 2: Convert to fraction form
    453,605.94/679,631.31 = 320,247.54/x
  3. Step 3: Cross multiply
    453,605.94x = 679,631.31 × 320,247.54
  4. Step 4: Simplify right side
    453,605.94x = 217,650,255,134.48
  5. Step 5: Solve for x
    x = 217,650,255,134.48/453,605.94
  6. Step 6: Final answer
    x = 479,822.32

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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.