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Finding the Fourth Proportional to 545,466.56, 818,180.40 and 190,479.20

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Solution

The fourth proportional to 545,466.56, 818,180.40 and 190,479.20 is: 285,712.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,466.56 : 818,180.40 = 190,479.20 : x
  2. Step 2: Convert to fraction form
    545,466.56/818,180.40 = 190,479.20/x
  3. Step 3: Cross multiply
    545,466.56x = 818,180.40 × 190,479.20
  4. Step 4: Simplify right side
    545,466.56x = 155,846,348,047.68
  5. Step 5: Solve for x
    x = 155,846,348,047.68/545,466.56
  6. Step 6: Final answer
    x = 285,712.01

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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.