Home / 1,433,405.57-1,978,099.96-788,825.76

Finding the Fourth Proportional to 1,433,405.57, 1,978,099.96 and 788,825.76

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Solution

The fourth proportional to 1,433,405.57, 1,978,099.96 and 788,825.76 is: 1,088,579.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,405.57 : 1,978,099.96 = 788,825.76 : x
  2. Step 2: Convert to fraction form
    1,433,405.57/1,978,099.96 = 788,825.76/x
  3. Step 3: Cross multiply
    1,433,405.57x = 1,978,099.96 × 788,825.76
  4. Step 4: Simplify right side
    1,433,405.57x = 1,560,376,215,300.87
  5. Step 5: Solve for x
    x = 1,560,376,215,300.87/1,433,405.57
  6. Step 6: Final answer
    x = 1,088,579.71

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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.