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Finding the Fourth Proportional to 428,087.82, 590,755.23 and 246,800.10

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Solution

The fourth proportional to 428,087.82, 590,755.23 and 246,800.10 is: 340,580.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,087.82 : 590,755.23 = 246,800.10 : x
  2. Step 2: Convert to fraction form
    428,087.82/590,755.23 = 246,800.10/x
  3. Step 3: Cross multiply
    428,087.82x = 590,755.23 × 246,800.10
  4. Step 4: Simplify right side
    428,087.82x = 145,798,449,839.52
  5. Step 5: Solve for x
    x = 145,798,449,839.52/428,087.82
  6. Step 6: Final answer
    x = 340,580.70

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1.5x scale

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.