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Finding the Fourth Proportional to 449,599.86, 620,440.47 and 245,646.39

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Solution

The fourth proportional to 449,599.86, 620,440.47 and 245,646.39 is: 338,988.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,599.86 : 620,440.47 = 245,646.39 : x
  2. Step 2: Convert to fraction form
    449,599.86/620,440.47 = 245,646.39/x
  3. Step 3: Cross multiply
    449,599.86x = 620,440.47 × 245,646.39
  4. Step 4: Simplify right side
    449,599.86x = 152,408,961,665.40
  5. Step 5: Solve for x
    x = 152,408,961,665.40/449,599.86
  6. Step 6: Final answer
    x = 338,988.01

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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.