Home / 1,519,421.21-2,278,119.41-836,629.59

Finding the Fourth Proportional to 1,519,421.21, 2,278,119.41 and 836,629.59

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Solution

The fourth proportional to 1,519,421.21, 2,278,119.41 and 836,629.59 is: 1,254,386.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519,421.21 : 2,278,119.41 = 836,629.59 : x
  2. Step 2: Convert to fraction form
    1,519,421.21/2,278,119.41 = 836,629.59/x
  3. Step 3: Cross multiply
    1,519,421.21x = 2,278,119.41 × 836,629.59
  4. Step 4: Simplify right side
    1,519,421.21x = 1,905,942,107,959.34
  5. Step 5: Solve for x
    x = 1,905,942,107,959.34/1,519,421.21
  6. Step 6: Final answer
    x = 1,254,386.93

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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.