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Finding the Fourth Proportional to 449,601, 620,442.04 and 245,647.52

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Solution

The fourth proportional to 449,601, 620,442.04 and 245,647.52 is: 338,989.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,601 : 620,442.04 = 245,647.52 : x
  2. Step 2: Convert to fraction form
    449,601/620,442.04 = 245,647.52/x
  3. Step 3: Cross multiply
    449,601x = 620,442.04 × 245,647.52
  4. Step 4: Simplify right side
    449,601x = 152,410,048,429.74
  5. Step 5: Solve for x
    x = 152,410,048,429.74/449,601
  6. Step 6: Final answer
    x = 338,989.57

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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.