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Finding the Fourth Proportional to 449,504.64, 620,335.28 and 258,518.21

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Solution

The fourth proportional to 449,504.64, 620,335.28 and 258,518.21 is: 356,765.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,504.64 : 620,335.28 = 258,518.21 : x
  2. Step 2: Convert to fraction form
    449,504.64/620,335.28 = 258,518.21/x
  3. Step 3: Cross multiply
    449,504.64x = 620,335.28 × 258,518.21
  4. Step 4: Simplify right side
    449,504.64x = 160,367,963,730.07
  5. Step 5: Solve for x
    x = 160,367,963,730.07/449,504.64
  6. Step 6: Final answer
    x = 356,765.98

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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.