Home / 1,638,164.69-2,260,827.21-1,223,982.77

Finding the Fourth Proportional to 1,638,164.69, 2,260,827.21 and 1,223,982.77

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Solution

The fourth proportional to 1,638,164.69, 2,260,827.21 and 1,223,982.77 is: 1,689,215.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,164.69 : 2,260,827.21 = 1,223,982.77 : x
  2. Step 2: Convert to fraction form
    1,638,164.69/2,260,827.21 = 1,223,982.77/x
  3. Step 3: Cross multiply
    1,638,164.69x = 2,260,827.21 × 1,223,982.77
  4. Step 4: Simplify right side
    1,638,164.69x = 2,767,213,550,987.17
  5. Step 5: Solve for x
    x = 2,767,213,550,987.17/1,638,164.69
  6. Step 6: Final answer
    x = 1,689,215.72

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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.