Home / 449,454.06-620,246.55-258,463.26

Finding the Fourth Proportional to 449,454.06, 620,246.55 and 258,463.26

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Solution

The fourth proportional to 449,454.06, 620,246.55 and 258,463.26 is: 356,679.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,454.06 : 620,246.55 = 258,463.26 : x
  2. Step 2: Convert to fraction form
    449,454.06/620,246.55 = 258,463.26/x
  3. Step 3: Cross multiply
    449,454.06x = 620,246.55 × 258,463.26
  4. Step 4: Simplify right side
    449,454.06x = 160,310,945,316.75
  5. Step 5: Solve for x
    x = 160,310,945,316.75/449,454.06
  6. Step 6: Final answer
    x = 356,679.27

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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.