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Finding the Fourth Proportional to 428,064.48, 590,678.28 and 246,835.98

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Solution

The fourth proportional to 428,064.48, 590,678.28 and 246,835.98 is: 340,604.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,064.48 : 590,678.28 = 246,835.98 : x
  2. Step 2: Convert to fraction form
    428,064.48/590,678.28 = 246,835.98/x
  3. Step 3: Cross multiply
    428,064.48x = 590,678.28 × 246,835.98
  4. Step 4: Simplify right side
    428,064.48x = 145,800,652,108.51
  5. Step 5: Solve for x
    x = 145,800,652,108.51/428,064.48
  6. Step 6: Final answer
    x = 340,604.42

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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.