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Finding the Fourth Proportional to 624,611.10, 936,776.37 and 287,327.79

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Solution

The fourth proportional to 624,611.10, 936,776.37 and 287,327.79 is: 430,927.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,611.10 : 936,776.37 = 287,327.79 : x
  2. Step 2: Convert to fraction form
    624,611.10/936,776.37 = 287,327.79/x
  3. Step 3: Cross multiply
    624,611.10x = 936,776.37 × 287,327.79
  4. Step 4: Simplify right side
    624,611.10x = 269,161,884,116.32
  5. Step 5: Solve for x
    x = 269,161,884,116.32/624,611.10
  6. Step 6: Final answer
    x = 430,927.15

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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.