Home / 1,419,897.60-1,959,465.87-775,317.78

Finding the Fourth Proportional to 1,419,897.60, 1,959,465.87 and 775,317.78

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Solution

The fourth proportional to 1,419,897.60, 1,959,465.87 and 775,317.78 is: 1,069,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,897.60 : 1,959,465.87 = 775,317.78 : x
  2. Step 2: Convert to fraction form
    1,419,897.60/1,959,465.87 = 775,317.78/x
  3. Step 3: Cross multiply
    1,419,897.60x = 1,959,465.87 × 775,317.78
  4. Step 4: Simplify right side
    1,419,897.60x = 1,519,208,728,314.17
  5. Step 5: Solve for x
    x = 1,519,208,728,314.17/1,419,897.60
  6. Step 6: Final answer
    x = 1,069,942.46

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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.