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Finding the Fourth Proportional to 456,991.02, 630,647.10 and 255,787.02

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Solution

The fourth proportional to 456,991.02, 630,647.10 and 255,787.02 is: 352,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,991.02 : 630,647.10 = 255,787.02 : x
  2. Step 2: Convert to fraction form
    456,991.02/630,647.10 = 255,787.02/x
  3. Step 3: Cross multiply
    456,991.02x = 630,647.10 × 255,787.02
  4. Step 4: Simplify right side
    456,991.02x = 161,311,342,380.64
  5. Step 5: Solve for x
    x = 161,311,342,380.64/456,991.02
  6. Step 6: Final answer
    x = 352,985.80

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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.