Home / 1,220,149.51-1,827,649.49-978,957.58

Finding the Fourth Proportional to 1,220,149.51, 1,827,649.49 and 978,957.58

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Solution

The fourth proportional to 1,220,149.51, 1,827,649.49 and 978,957.58 is: 1,466,370.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,149.51 : 1,827,649.49 = 978,957.58 : x
  2. Step 2: Convert to fraction form
    1,220,149.51/1,827,649.49 = 978,957.58/x
  3. Step 3: Cross multiply
    1,220,149.51x = 1,827,649.49 × 978,957.58
  4. Step 4: Simplify right side
    1,220,149.51x = 1,789,191,321,818.63
  5. Step 5: Solve for x
    x = 1,789,191,321,818.63/1,220,149.51
  6. Step 6: Final answer
    x = 1,466,370.56

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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.