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Finding the Fourth Proportional to 428,085.48, 590,756.46 and 246,796.53

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Solution

The fourth proportional to 428,085.48, 590,756.46 and 246,796.53 is: 340,578.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,085.48 : 590,756.46 = 246,796.53 : x
  2. Step 2: Convert to fraction form
    428,085.48/590,756.46 = 246,796.53/x
  3. Step 3: Cross multiply
    428,085.48x = 590,756.46 × 246,796.53
  4. Step 4: Simplify right side
    428,085.48x = 145,796,644,403.08
  5. Step 5: Solve for x
    x = 145,796,644,403.08/428,085.48
  6. Step 6: Final answer
    x = 340,578.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.