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Finding the Fourth Proportional to 362,406.30, 543,609.45 and 355,407.90

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Solution

The fourth proportional to 362,406.30, 543,609.45 and 355,407.90 is: 533,111.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,406.30 : 543,609.45 = 355,407.90 : x
  2. Step 2: Convert to fraction form
    362,406.30/543,609.45 = 355,407.90/x
  3. Step 3: Cross multiply
    362,406.30x = 543,609.45 × 355,407.90
  4. Step 4: Simplify right side
    362,406.30x = 193,203,093,044.66
  5. Step 5: Solve for x
    x = 193,203,093,044.66/362,406.30
  6. Step 6: Final answer
    x = 533,111.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.