Home / 1,433,393.42-1,978,083.20-788,813.62

Finding the Fourth Proportional to 1,433,393.42, 1,978,083.20 and 788,813.62

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Solution

The fourth proportional to 1,433,393.42, 1,978,083.20 and 788,813.62 is: 1,088,562.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,393.42 : 1,978,083.20 = 788,813.62 : x
  2. Step 2: Convert to fraction form
    1,433,393.42/1,978,083.20 = 788,813.62/x
  3. Step 3: Cross multiply
    1,433,393.42x = 1,978,083.20 × 788,813.62
  4. Step 4: Simplify right side
    1,433,393.42x = 1,560,338,971,867.94
  5. Step 5: Solve for x
    x = 1,560,338,971,867.94/1,433,393.42
  6. Step 6: Final answer
    x = 1,088,562.95

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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.