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Finding the Fourth Proportional to 469,573.52, 647,617.32 and 308,305.04

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Solution

The fourth proportional to 469,573.52, 647,617.32 and 308,305.04 is: 425,202.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,573.52 : 647,617.32 = 308,305.04 : x
  2. Step 2: Convert to fraction form
    469,573.52/647,617.32 = 308,305.04/x
  3. Step 3: Cross multiply
    469,573.52x = 647,617.32 × 308,305.04
  4. Step 4: Simplify right side
    469,573.52x = 199,663,683,747.29
  5. Step 5: Solve for x
    x = 199,663,683,747.29/469,573.52
  6. Step 6: Final answer
    x = 425,202.18

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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.