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Finding the Fourth Proportional to 1,868,731.10, 2,804,408.85 and 804,536.90

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Solution

The fourth proportional to 1,868,731.10, 2,804,408.85 and 804,536.90 is: 1,207,370.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,731.10 : 2,804,408.85 = 804,536.90 : x
  2. Step 2: Convert to fraction form
    1,868,731.10/2,804,408.85 = 804,536.90/x
  3. Step 3: Cross multiply
    1,868,731.10x = 2,804,408.85 × 804,536.90
  4. Step 4: Simplify right side
    1,868,731.10x = 2,256,250,402,511.57
  5. Step 5: Solve for x
    x = 2,256,250,402,511.57/1,868,731.10
  6. Step 6: Final answer
    x = 1,207,370.29

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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.