Home / 2,153,798.80-2,972,201.52-1,187,018.80

Finding the Fourth Proportional to 2,153,798.80, 2,972,201.52 and 1,187,018.80

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Solution

The fourth proportional to 2,153,798.80, 2,972,201.52 and 1,187,018.80 is: 1,638,063.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,798.80 : 2,972,201.52 = 1,187,018.80 : x
  2. Step 2: Convert to fraction form
    2,153,798.80/2,972,201.52 = 1,187,018.80/x
  3. Step 3: Cross multiply
    2,153,798.80x = 2,972,201.52 × 1,187,018.80
  4. Step 4: Simplify right side
    2,153,798.80x = 3,528,059,081,628.58
  5. Step 5: Solve for x
    x = 3,528,059,081,628.58/2,153,798.80
  6. Step 6: Final answer
    x = 1,638,063.44

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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.