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Finding the Fourth Proportional to 965,779.60, 1,448,662.20 and 291,859.60

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Solution

The fourth proportional to 965,779.60, 1,448,662.20 and 291,859.60 is: 437,787.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,779.60 : 1,448,662.20 = 291,859.60 : x
  2. Step 2: Convert to fraction form
    965,779.60/1,448,662.20 = 291,859.60/x
  3. Step 3: Cross multiply
    965,779.60x = 1,448,662.20 × 291,859.60
  4. Step 4: Simplify right side
    965,779.60x = 422,805,970,227.12
  5. Step 5: Solve for x
    x = 422,805,970,227.12/965,779.60
  6. Step 6: Final answer
    x = 437,787.22

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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.