Home / 1,190,339.15-1,641,718.36-782,859.39

Finding the Fourth Proportional to 1,190,339.15, 1,641,718.36 and 782,859.39

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Solution

The fourth proportional to 1,190,339.15, 1,641,718.36 and 782,859.39 is: 1,079,721.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,339.15 : 1,641,718.36 = 782,859.39 : x
  2. Step 2: Convert to fraction form
    1,190,339.15/1,641,718.36 = 782,859.39/x
  3. Step 3: Cross multiply
    1,190,339.15x = 1,641,718.36 × 782,859.39
  4. Step 4: Simplify right side
    1,190,339.15x = 1,285,234,633,861.40
  5. Step 5: Solve for x
    x = 1,285,234,633,861.40/1,190,339.15
  6. Step 6: Final answer
    x = 1,079,721.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.