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Finding the Fourth Proportional to 449,706.33, 620,618.76 and 258,748.83

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Solution

The fourth proportional to 449,706.33, 620,618.76 and 258,748.83 is: 357,087.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,706.33 : 620,618.76 = 258,748.83 : x
  2. Step 2: Convert to fraction form
    449,706.33/620,618.76 = 258,748.83/x
  3. Step 3: Cross multiply
    449,706.33x = 620,618.76 × 258,748.83
  4. Step 4: Simplify right side
    449,706.33x = 160,584,378,026.05
  5. Step 5: Solve for x
    x = 160,584,378,026.05/449,706.33
  6. Step 6: Final answer
    x = 357,087.21

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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.