Home / 1,388,466.40-2,084,626.86-715,028.68

Finding the Fourth Proportional to 1,388,466.40, 2,084,626.86 and 715,028.68

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Solution

The fourth proportional to 1,388,466.40, 2,084,626.86 and 715,028.68 is: 1,073,535.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,466.40 : 2,084,626.86 = 715,028.68 : x
  2. Step 2: Convert to fraction form
    1,388,466.40/2,084,626.86 = 715,028.68/x
  3. Step 3: Cross multiply
    1,388,466.40x = 2,084,626.86 × 715,028.68
  4. Step 4: Simplify right side
    1,388,466.40x = 1,490,567,991,998.35
  5. Step 5: Solve for x
    x = 1,490,567,991,998.35/1,388,466.40
  6. Step 6: Final answer
    x = 1,073,535.52

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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.