Home / 1,388,829.87-2,081,779.33-748,959.46

Finding the Fourth Proportional to 1,388,829.87, 2,081,779.33 and 748,959.46

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Solution

The fourth proportional to 1,388,829.87, 2,081,779.33 and 748,959.46 is: 1,122,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,829.87 : 2,081,779.33 = 748,959.46 : x
  2. Step 2: Convert to fraction form
    1,388,829.87/2,081,779.33 = 748,959.46/x
  3. Step 3: Cross multiply
    1,388,829.87x = 2,081,779.33 × 748,959.46
  4. Step 4: Simplify right side
    1,388,829.87x = 1,559,168,322,835.96
  5. Step 5: Solve for x
    x = 1,559,168,322,835.96/1,388,829.87
  6. Step 6: Final answer
    x = 1,122,648.90

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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.