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Finding the Fourth Proportional to 793,358.72, 1,190,511 and 287,959.22

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Solution

The fourth proportional to 793,358.72, 1,190,511 and 287,959.22 is: 432,110.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    793,358.72 : 1,190,511 = 287,959.22 : x
  2. Step 2: Convert to fraction form
    793,358.72/1,190,511 = 287,959.22/x
  3. Step 3: Cross multiply
    793,358.72x = 1,190,511 × 287,959.22
  4. Step 4: Simplify right side
    793,358.72x = 342,818,618,961.42
  5. Step 5: Solve for x
    x = 342,818,618,961.42/793,358.72
  6. Step 6: Final answer
    x = 432,110.48

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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.