Home / 2,085,555.51-3,129,516.67-1,125,998.32

Finding the Fourth Proportional to 2,085,555.51, 3,129,516.67 and 1,125,998.32

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Solution

The fourth proportional to 2,085,555.51, 3,129,516.67 and 1,125,998.32 is: 1,689,636.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,555.51 : 3,129,516.67 = 1,125,998.32 : x
  2. Step 2: Convert to fraction form
    2,085,555.51/3,129,516.67 = 1,125,998.32/x
  3. Step 3: Cross multiply
    2,085,555.51x = 3,129,516.67 × 1,125,998.32
  4. Step 4: Simplify right side
    2,085,555.51x = 3,523,830,510,017.00
  5. Step 5: Solve for x
    x = 3,523,830,510,017.00/2,085,555.51
  6. Step 6: Final answer
    x = 1,689,636.41

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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.