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Finding the Fourth Proportional to 489,205.30, 733,844.40 and 173,621.20

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Solution

The fourth proportional to 489,205.30, 733,844.40 and 173,621.20 is: 260,444.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,205.30 : 733,844.40 = 173,621.20 : x
  2. Step 2: Convert to fraction form
    489,205.30/733,844.40 = 173,621.20/x
  3. Step 3: Cross multiply
    489,205.30x = 733,844.40 × 173,621.20
  4. Step 4: Simplify right side
    489,205.30x = 127,410,945,341.28
  5. Step 5: Solve for x
    x = 127,410,945,341.28/489,205.30
  6. Step 6: Final answer
    x = 260,444.74

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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.