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Finding the Fourth Proportional to 449,594.34, 620,432.96 and 245,640.88

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Solution

The fourth proportional to 449,594.34, 620,432.96 and 245,640.88 is: 338,980.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,594.34 : 620,432.96 = 245,640.88 : x
  2. Step 2: Convert to fraction form
    449,594.34/620,432.96 = 245,640.88/x
  3. Step 3: Cross multiply
    449,594.34x = 620,432.96 × 245,640.88
  4. Step 4: Simplify right side
    449,594.34x = 152,403,698,275.41
  5. Step 5: Solve for x
    x = 152,403,698,275.41/449,594.34
  6. Step 6: Final answer
    x = 338,980.46

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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.