Home / 449,835.04-620,772.96-258,844.60

Finding the Fourth Proportional to 449,835.04, 620,772.96 and 258,844.60

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Solution

The fourth proportional to 449,835.04, 620,772.96 and 258,844.60 is: 357,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,835.04 : 620,772.96 = 258,844.60 : x
  2. Step 2: Convert to fraction form
    449,835.04/620,772.96 = 258,844.60/x
  3. Step 3: Cross multiply
    449,835.04x = 620,772.96 × 258,844.60
  4. Step 4: Simplify right side
    449,835.04x = 160,683,728,522.02
  5. Step 5: Solve for x
    x = 160,683,728,522.02/449,835.04
  6. Step 6: Final answer
    x = 357,205.90

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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.