Home / 1,970,485.76-2,956,835.64-1,071,990.32

Finding the Fourth Proportional to 1,970,485.76, 2,956,835.64 and 1,071,990.32

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Solution

The fourth proportional to 1,970,485.76, 2,956,835.64 and 1,071,990.32 is: 1,608,587.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970,485.76 : 2,956,835.64 = 1,071,990.32 : x
  2. Step 2: Convert to fraction form
    1,970,485.76/2,956,835.64 = 1,071,990.32/x
  3. Step 3: Cross multiply
    1,970,485.76x = 2,956,835.64 × 1,071,990.32
  4. Step 4: Simplify right side
    1,970,485.76x = 3,169,699,183,911.01
  5. Step 5: Solve for x
    x = 3,169,699,183,911.01/1,970,485.76
  6. Step 6: Final answer
    x = 1,608,587.71

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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.