Home / 1,020,370.05-1,410,052.73-765,278.37

Finding the Fourth Proportional to 1,020,370.05, 1,410,052.73 and 765,278.37

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Solution

The fourth proportional to 1,020,370.05, 1,410,052.73 and 765,278.37 is: 1,057,540.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,370.05 : 1,410,052.73 = 765,278.37 : x
  2. Step 2: Convert to fraction form
    1,020,370.05/1,410,052.73 = 765,278.37/x
  3. Step 3: Cross multiply
    1,020,370.05x = 1,410,052.73 × 765,278.37
  4. Step 4: Simplify right side
    1,020,370.05x = 1,079,082,851,002.06
  5. Step 5: Solve for x
    x = 1,079,082,851,002.06/1,020,370.05
  6. Step 6: Final answer
    x = 1,057,540.69

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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.