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Finding the Fourth Proportional to 544,155.90, 816,372.18 and 319,705.98

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Solution

The fourth proportional to 544,155.90, 816,372.18 and 319,705.98 is: 479,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,155.90 : 816,372.18 = 319,705.98 : x
  2. Step 2: Convert to fraction form
    544,155.90/816,372.18 = 319,705.98/x
  3. Step 3: Cross multiply
    544,155.90x = 816,372.18 × 319,705.98
  4. Step 4: Simplify right side
    544,155.90x = 260,999,067,851.64
  5. Step 5: Solve for x
    x = 260,999,067,851.64/544,155.90
  6. Step 6: Final answer
    x = 479,640.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.