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Finding the Fourth Proportional to 449,444.16, 620,265.60 and 258,517.44

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Solution

The fourth proportional to 449,444.16, 620,265.60 and 258,517.44 is: 356,772.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,444.16 : 620,265.60 = 258,517.44 : x
  2. Step 2: Convert to fraction form
    449,444.16/620,265.60 = 258,517.44/x
  3. Step 3: Cross multiply
    449,444.16x = 620,265.60 × 258,517.44
  4. Step 4: Simplify right side
    449,444.16x = 160,349,475,032.06
  5. Step 5: Solve for x
    x = 160,349,475,032.06/449,444.16
  6. Step 6: Final answer
    x = 356,772.85

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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.