Home / 1,381,081.16-1,905,987.79-837,239.87

Finding the Fourth Proportional to 1,381,081.16, 1,905,987.79 and 837,239.87

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Solution

The fourth proportional to 1,381,081.16, 1,905,987.79 and 837,239.87 is: 1,155,449.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,081.16 : 1,905,987.79 = 837,239.87 : x
  2. Step 2: Convert to fraction form
    1,381,081.16/1,905,987.79 = 837,239.87/x
  3. Step 3: Cross multiply
    1,381,081.16x = 1,905,987.79 × 837,239.87
  4. Step 4: Simplify right side
    1,381,081.16x = 1,595,768,969,521.19
  5. Step 5: Solve for x
    x = 1,595,768,969,521.19/1,381,081.16
  6. Step 6: Final answer
    x = 1,155,449.09

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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.