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Finding the Fourth Proportional to 449,494.64, 620,315.94 and 245,548.94

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Solution

The fourth proportional to 449,494.64, 620,315.94 and 245,548.94 is: 338,864.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,494.64 : 620,315.94 = 245,548.94 : x
  2. Step 2: Convert to fraction form
    449,494.64/620,315.94 = 245,548.94/x
  3. Step 3: Cross multiply
    449,494.64x = 620,315.94 × 245,548.94
  4. Step 4: Simplify right side
    449,494.64x = 152,317,918,430.52
  5. Step 5: Solve for x
    x = 152,317,918,430.52/449,494.64
  6. Step 6: Final answer
    x = 338,864.82

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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.