Home / 1,980,470.52-2,970,705.65-1,081,421.73

Finding the Fourth Proportional to 1,980,470.52, 2,970,705.65 and 1,081,421.73

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Solution

The fourth proportional to 1,980,470.52, 2,970,705.65 and 1,081,421.73 is: 1,622,132.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,470.52 : 2,970,705.65 = 1,081,421.73 : x
  2. Step 2: Convert to fraction form
    1,980,470.52/2,970,705.65 = 1,081,421.73/x
  3. Step 3: Cross multiply
    1,980,470.52x = 2,970,705.65 × 1,081,421.73
  4. Step 4: Simplify right side
    1,980,470.52x = 3,212,585,637,936.67
  5. Step 5: Solve for x
    x = 3,212,585,637,936.67/1,980,470.52
  6. Step 6: Final answer
    x = 1,622,132.52

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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.