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Finding the Fourth Proportional to 449,602.25, 620,432.65 and 245,660.18

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Solution

The fourth proportional to 449,602.25, 620,432.65 and 245,660.18 is: 339,000.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,602.25 : 620,432.65 = 245,660.18 : x
  2. Step 2: Convert to fraction form
    449,602.25/620,432.65 = 245,660.18/x
  3. Step 3: Cross multiply
    449,602.25x = 620,432.65 × 245,660.18
  4. Step 4: Simplify right side
    449,602.25x = 152,415,593,681.79
  5. Step 5: Solve for x
    x = 152,415,593,681.79/449,602.25
  6. Step 6: Final answer
    x = 339,000.96

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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.