Home / 1,980,513.18-2,971,893.33-1,069,684.38

Finding the Fourth Proportional to 1,980,513.18, 2,971,893.33 and 1,069,684.38

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Solution

The fourth proportional to 1,980,513.18, 2,971,893.33 and 1,069,684.38 is: 1,605,133.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,513.18 : 2,971,893.33 = 1,069,684.38 : x
  2. Step 2: Convert to fraction form
    1,980,513.18/2,971,893.33 = 1,069,684.38/x
  3. Step 3: Cross multiply
    1,980,513.18x = 2,971,893.33 × 1,069,684.38
  4. Step 4: Simplify right side
    1,980,513.18x = 3,178,987,874,127.19
  5. Step 5: Solve for x
    x = 3,178,987,874,127.19/1,980,513.18
  6. Step 6: Final answer
    x = 1,605,133.41

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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.