Home / 1,987,295.40-2,742,478.02-1,081,883.88

Finding the Fourth Proportional to 1,987,295.40, 2,742,478.02 and 1,081,883.88

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Solution

The fourth proportional to 1,987,295.40, 2,742,478.02 and 1,081,883.88 is: 1,493,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,295.40 : 2,742,478.02 = 1,081,883.88 : x
  2. Step 2: Convert to fraction form
    1,987,295.40/2,742,478.02 = 1,081,883.88/x
  3. Step 3: Cross multiply
    1,987,295.40x = 2,742,478.02 × 1,081,883.88
  4. Step 4: Simplify right side
    1,987,295.40x = 2,967,042,761,092.32
  5. Step 5: Solve for x
    x = 2,967,042,761,092.32/1,987,295.40
  6. Step 6: Final answer
    x = 1,493,005.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.