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Finding the Fourth Proportional to 449,861.04, 620,808.84 and 258,870.64

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Solution

The fourth proportional to 449,861.04, 620,808.84 and 258,870.64 is: 357,241.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,861.04 : 620,808.84 = 258,870.64 : x
  2. Step 2: Convert to fraction form
    449,861.04/620,808.84 = 258,870.64/x
  3. Step 3: Cross multiply
    449,861.04x = 620,808.84 × 258,870.64
  4. Step 4: Simplify right side
    449,861.04x = 160,709,181,728.46
  5. Step 5: Solve for x
    x = 160,709,181,728.46/449,861.04
  6. Step 6: Final answer
    x = 357,241.83

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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.