Home / 792,586.40-1,188,969.78-287,385.32

Finding the Fourth Proportional to 792,586.40, 1,188,969.78 and 287,385.32

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Solution

The fourth proportional to 792,586.40, 1,188,969.78 and 287,385.32 is: 431,110.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,586.40 : 1,188,969.78 = 287,385.32 : x
  2. Step 2: Convert to fraction form
    792,586.40/1,188,969.78 = 287,385.32/x
  3. Step 3: Cross multiply
    792,586.40x = 1,188,969.78 × 287,385.32
  4. Step 4: Simplify right side
    792,586.40x = 341,692,460,695.63
  5. Step 5: Solve for x
    x = 341,692,460,695.63/792,586.40
  6. Step 6: Final answer
    x = 431,110.68

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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.