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Finding the Fourth Proportional to 624,588.60, 936,742.62 and 287,305.29

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Solution

The fourth proportional to 624,588.60, 936,742.62 and 287,305.29 is: 430,893.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,588.60 : 936,742.62 = 287,305.29 : x
  2. Step 2: Convert to fraction form
    624,588.60/936,742.62 = 287,305.29/x
  3. Step 3: Cross multiply
    624,588.60x = 936,742.62 × 287,305.29
  4. Step 4: Simplify right side
    624,588.60x = 269,131,110,094.46
  5. Step 5: Solve for x
    x = 269,131,110,094.46/624,588.60
  6. Step 6: Final answer
    x = 430,893.41

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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.