Home / 1,275,338.28-1,912,556.52-376,539.60

Finding the Fourth Proportional to 1,275,338.28, 1,912,556.52 and 376,539.60

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Solution

The fourth proportional to 1,275,338.28, 1,912,556.52 and 376,539.60 is: 564,676.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,338.28 : 1,912,556.52 = 376,539.60 : x
  2. Step 2: Convert to fraction form
    1,275,338.28/1,912,556.52 = 376,539.60/x
  3. Step 3: Cross multiply
    1,275,338.28x = 1,912,556.52 × 376,539.60
  4. Step 4: Simplify right side
    1,275,338.28x = 720,153,267,018.19
  5. Step 5: Solve for x
    x = 720,153,267,018.19/1,275,338.28
  6. Step 6: Final answer
    x = 564,676.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.