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Finding the Fourth Proportional to 507,981.33, 701,045.67 and 281,626.83

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Solution

The fourth proportional to 507,981.33, 701,045.67 and 281,626.83 is: 388,662.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,981.33 : 701,045.67 = 281,626.83 : x
  2. Step 2: Convert to fraction form
    507,981.33/701,045.67 = 281,626.83/x
  3. Step 3: Cross multiply
    507,981.33x = 701,045.67 × 281,626.83
  4. Step 4: Simplify right side
    507,981.33x = 197,433,269,727.33
  5. Step 5: Solve for x
    x = 197,433,269,727.33/507,981.33
  6. Step 6: Final answer
    x = 388,662.45

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1.5x scale

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.