Home / 793,278.72-1,190,390.85-287,879.16

Finding the Fourth Proportional to 793,278.72, 1,190,390.85 and 287,879.16

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Solution

The fourth proportional to 793,278.72, 1,190,390.85 and 287,879.16 is: 431,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    793,278.72 : 1,190,390.85 = 287,879.16 : x
  2. Step 2: Convert to fraction form
    793,278.72/1,190,390.85 = 287,879.16/x
  3. Step 3: Cross multiply
    793,278.72x = 1,190,390.85 × 287,879.16
  4. Step 4: Simplify right side
    793,278.72x = 342,688,717,969.69
  5. Step 5: Solve for x
    x = 342,688,717,969.69/793,278.72
  6. Step 6: Final answer
    x = 431,990.31

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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.