Home / 1,381,435.38-1,905,875.19-837,178.56

Finding the Fourth Proportional to 1,381,435.38, 1,905,875.19 and 837,178.56

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Solution

The fourth proportional to 1,381,435.38, 1,905,875.19 and 837,178.56 is: 1,154,999.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,435.38 : 1,905,875.19 = 837,178.56 : x
  2. Step 2: Convert to fraction form
    1,381,435.38/1,905,875.19 = 837,178.56/x
  3. Step 3: Cross multiply
    1,381,435.38x = 1,905,875.19 × 837,178.56
  4. Step 4: Simplify right side
    1,381,435.38x = 1,595,557,847,103.93
  5. Step 5: Solve for x
    x = 1,595,557,847,103.93/1,381,435.38
  6. Step 6: Final answer
    x = 1,154,999.99

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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.