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Finding the Fourth Proportional to 545,380.72, 818,444.74 and 190,394.73

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Solution

The fourth proportional to 545,380.72, 818,444.74 and 190,394.73 is: 285,722.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,380.72 : 818,444.74 = 190,394.73 : x
  2. Step 2: Convert to fraction form
    545,380.72/818,444.74 = 190,394.73/x
  3. Step 3: Cross multiply
    545,380.72x = 818,444.74 × 190,394.73
  4. Step 4: Simplify right side
    545,380.72x = 155,827,563,674.58
  5. Step 5: Solve for x
    x = 155,827,563,674.58/545,380.72
  6. Step 6: Final answer
    x = 285,722.54

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1.5x scale

Why These Related Problems?

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