Home / 1,326,340.86-1,830,350.06-722,728.86

Finding the Fourth Proportional to 1,326,340.86, 1,830,350.06 and 722,728.86

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Solution

The fourth proportional to 1,326,340.86, 1,830,350.06 and 722,728.86 is: 997,365.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,340.86 : 1,830,350.06 = 722,728.86 : x
  2. Step 2: Convert to fraction form
    1,326,340.86/1,830,350.06 = 722,728.86/x
  3. Step 3: Cross multiply
    1,326,340.86x = 1,830,350.06 × 722,728.86
  4. Step 4: Simplify right side
    1,326,340.86x = 1,322,846,808,651.09
  5. Step 5: Solve for x
    x = 1,322,846,808,651.09/1,326,340.86
  6. Step 6: Final answer
    x = 997,365.65

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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.