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Finding the Fourth Proportional to 428,093.91, 590,773.93 and 258,295.23

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Solution

The fourth proportional to 428,093.91, 590,773.93 and 258,295.23 is: 356,450.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,093.91 : 590,773.93 = 258,295.23 : x
  2. Step 2: Convert to fraction form
    428,093.91/590,773.93 = 258,295.23/x
  3. Step 3: Cross multiply
    428,093.91x = 590,773.93 × 258,295.23
  4. Step 4: Simplify right side
    428,093.91x = 152,594,087,481.62
  5. Step 5: Solve for x
    x = 152,594,087,481.62/428,093.91
  6. Step 6: Final answer
    x = 356,450.03

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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.