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Finding the Fourth Proportional to 449,631.41, 620,483.83 and 245,677.86

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Solution

The fourth proportional to 449,631.41, 620,483.83 and 245,677.86 is: 339,031.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,631.41 : 620,483.83 = 245,677.86 : x
  2. Step 2: Convert to fraction form
    449,631.41/620,483.83 = 245,677.86/x
  3. Step 3: Cross multiply
    449,631.41x = 620,483.83 × 245,677.86
  4. Step 4: Simplify right side
    449,631.41x = 152,439,138,904.81
  5. Step 5: Solve for x
    x = 152,439,138,904.81/449,631.41
  6. Step 6: Final answer
    x = 339,031.34

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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.