Home / 428,368.08-591,163.20-258,569.04

Finding the Fourth Proportional to 428,368.08, 591,163.20 and 258,569.04

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Solution

The fourth proportional to 428,368.08, 591,163.20 and 258,569.04 is: 356,834.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,368.08 : 591,163.20 = 258,569.04 : x
  2. Step 2: Convert to fraction form
    428,368.08/591,163.20 = 258,569.04/x
  3. Step 3: Cross multiply
    428,368.08x = 591,163.20 × 258,569.04
  4. Step 4: Simplify right side
    428,368.08x = 152,856,501,107.33
  5. Step 5: Solve for x
    x = 152,856,501,107.33/428,368.08
  6. Step 6: Final answer
    x = 356,834.48

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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.