Home / 1,988,999.80-2,980,940.69-1,731,779.90

Finding the Fourth Proportional to 1,988,999.80, 2,980,940.69 and 1,731,779.90

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Solution

The fourth proportional to 1,988,999.80, 2,980,940.69 and 1,731,779.90 is: 2,595,441.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,999.80 : 2,980,940.69 = 1,731,779.90 : x
  2. Step 2: Convert to fraction form
    1,988,999.80/2,980,940.69 = 1,731,779.90/x
  3. Step 3: Cross multiply
    1,988,999.80x = 2,980,940.69 × 1,731,779.90
  4. Step 4: Simplify right side
    1,988,999.80x = 5,162,333,160,896.14
  5. Step 5: Solve for x
    x = 5,162,333,160,896.14/1,988,999.80
  6. Step 6: Final answer
    x = 2,595,441.77

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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.