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Finding the Fourth Proportional to 449,567.72, 620,412.37 and 245,631.27

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Solution

The fourth proportional to 449,567.72, 620,412.37 and 245,631.27 is: 338,976.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,567.72 : 620,412.37 = 245,631.27 : x
  2. Step 2: Convert to fraction form
    449,567.72/620,412.37 = 245,631.27/x
  3. Step 3: Cross multiply
    449,567.72x = 620,412.37 × 245,631.27
  4. Step 4: Simplify right side
    449,567.72x = 152,392,677,971.13
  5. Step 5: Solve for x
    x = 152,392,677,971.13/449,567.72
  6. Step 6: Final answer
    x = 338,976.02

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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.