Home / 986,798.19-1,361,705.48-557,120.73

Finding the Fourth Proportional to 986,798.19, 1,361,705.48 and 557,120.73

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Solution

The fourth proportional to 986,798.19, 1,361,705.48 and 557,120.73 is: 768,783.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,798.19 : 1,361,705.48 = 557,120.73 : x
  2. Step 2: Convert to fraction form
    986,798.19/1,361,705.48 = 557,120.73/x
  3. Step 3: Cross multiply
    986,798.19x = 1,361,705.48 × 557,120.73
  4. Step 4: Simplify right side
    986,798.19x = 758,634,348,277.00
  5. Step 5: Solve for x
    x = 758,634,348,277.00/986,798.19
  6. Step 6: Final answer
    x = 768,783.68

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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.