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Finding the Fourth Proportional to 630,243.12, 944,880.06 and 326,311.44

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Solution

The fourth proportional to 630,243.12, 944,880.06 and 326,311.44 is: 489,216.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,243.12 : 944,880.06 = 326,311.44 : x
  2. Step 2: Convert to fraction form
    630,243.12/944,880.06 = 326,311.44/x
  3. Step 3: Cross multiply
    630,243.12x = 944,880.06 × 326,311.44
  4. Step 4: Simplify right side
    630,243.12x = 308,325,173,005.89
  5. Step 5: Solve for x
    x = 308,325,173,005.89/630,243.12
  6. Step 6: Final answer
    x = 489,216.25

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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.