Home / 1,980,802.63-2,971,203.95-1,081,753.86

Finding the Fourth Proportional to 1,980,802.63, 2,971,203.95 and 1,081,753.86

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Solution

The fourth proportional to 1,980,802.63, 2,971,203.95 and 1,081,753.86 is: 1,622,630.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,802.63 : 2,971,203.95 = 1,081,753.86 : x
  2. Step 2: Convert to fraction form
    1,980,802.63/2,971,203.95 = 1,081,753.86/x
  3. Step 3: Cross multiply
    1,980,802.63x = 2,971,203.95 × 1,081,753.86
  4. Step 4: Simplify right side
    1,980,802.63x = 3,214,111,341,759.75
  5. Step 5: Solve for x
    x = 3,214,111,341,759.75/1,980,802.63
  6. Step 6: Final answer
    x = 1,622,630.79

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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.