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Finding the Fourth Proportional to 449,444.67, 620,229.45 and 245,495.52

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Solution

The fourth proportional to 449,444.67, 620,229.45 and 245,495.52 is: 338,781.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,444.67 : 620,229.45 = 245,495.52 : x
  2. Step 2: Convert to fraction form
    449,444.67/620,229.45 = 245,495.52/x
  3. Step 3: Cross multiply
    449,444.67x = 620,229.45 × 245,495.52
  4. Step 4: Simplify right side
    449,444.67x = 152,263,551,347.06
  5. Step 5: Solve for x
    x = 152,263,551,347.06/449,444.67
  6. Step 6: Final answer
    x = 338,781.53

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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.