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Finding the Fourth Proportional to 507,605.91, 700,496.15 and 281,251.41

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Solution

The fourth proportional to 507,605.91, 700,496.15 and 281,251.41 is: 388,126.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,605.91 : 700,496.15 = 281,251.41 : x
  2. Step 2: Convert to fraction form
    507,605.91/700,496.15 = 281,251.41/x
  3. Step 3: Cross multiply
    507,605.91x = 700,496.15 × 281,251.41
  4. Step 4: Simplify right side
    507,605.91x = 197,015,529,887.07
  5. Step 5: Solve for x
    x = 197,015,529,887.07/507,605.91
  6. Step 6: Final answer
    x = 388,126.94

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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.