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Finding the Fourth Proportional to 428,039.66, 590,700.92 and 246,748.29

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Solution

The fourth proportional to 428,039.66, 590,700.92 and 246,748.29 is: 340,516.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,039.66 : 590,700.92 = 246,748.29 : x
  2. Step 2: Convert to fraction form
    428,039.66/590,700.92 = 246,748.29/x
  3. Step 3: Cross multiply
    428,039.66x = 590,700.92 × 246,748.29
  4. Step 4: Simplify right side
    428,039.66x = 145,754,440,677.69
  5. Step 5: Solve for x
    x = 145,754,440,677.69/428,039.66
  6. Step 6: Final answer
    x = 340,516.21

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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.