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Finding the Fourth Proportional to 1,433,379.11, 1,978,063.47 and 788,799.29

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Solution

The fourth proportional to 1,433,379.11, 1,978,063.47 and 788,799.29 is: 1,088,543.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,379.11 : 1,978,063.47 = 788,799.29 : x
  2. Step 2: Convert to fraction form
    1,433,379.11/1,978,063.47 = 788,799.29/x
  3. Step 3: Cross multiply
    1,433,379.11x = 1,978,063.47 × 788,799.29
  4. Step 4: Simplify right side
    1,433,379.11x = 1,560,295,050,820.62
  5. Step 5: Solve for x
    x = 1,560,295,050,820.62/1,433,379.11
  6. Step 6: Final answer
    x = 1,088,543.18

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