Home / 1,689,919.23-2,534,880.69-427,746.86

Finding the Fourth Proportional to 1,689,919.23, 2,534,880.69 and 427,746.86

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Solution

The fourth proportional to 1,689,919.23, 2,534,880.69 and 427,746.86 is: 641,620.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,919.23 : 2,534,880.69 = 427,746.86 : x
  2. Step 2: Convert to fraction form
    1,689,919.23/2,534,880.69 = 427,746.86/x
  3. Step 3: Cross multiply
    1,689,919.23x = 2,534,880.69 × 427,746.86
  4. Step 4: Simplify right side
    1,689,919.23x = 1,084,287,252,453.53
  5. Step 5: Solve for x
    x = 1,084,287,252,453.53/1,689,919.23
  6. Step 6: Final answer
    x = 641,620.75

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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.