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Finding the Fourth Proportional to 449,702.46, 620,565.03 and 248,485.50

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Solution

The fourth proportional to 449,702.46, 620,565.03 and 248,485.50 is: 342,896.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,702.46 : 620,565.03 = 248,485.50 : x
  2. Step 2: Convert to fraction form
    449,702.46/620,565.03 = 248,485.50/x
  3. Step 3: Cross multiply
    449,702.46x = 620,565.03 × 248,485.50
  4. Step 4: Simplify right side
    449,702.46x = 154,201,411,762.07
  5. Step 5: Solve for x
    x = 154,201,411,762.07/449,702.46
  6. Step 6: Final answer
    x = 342,896.53

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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.