Home / 449,476.47-620,402.63-258,551.37

Finding the Fourth Proportional to 449,476.47, 620,402.63 and 258,551.37

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Solution

The fourth proportional to 449,476.47, 620,402.63 and 258,551.37 is: 356,872.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,476.47 : 620,402.63 = 258,551.37 : x
  2. Step 2: Convert to fraction form
    449,476.47/620,402.63 = 258,551.37/x
  3. Step 3: Cross multiply
    449,476.47x = 620,402.63 × 258,551.37
  4. Step 4: Simplify right side
    449,476.47x = 160,405,948,645.35
  5. Step 5: Solve for x
    x = 160,405,948,645.35/449,476.47
  6. Step 6: Final answer
    x = 356,872.85

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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.