Home / 855,656.45-1,180,435.16-515,935.97

Finding the Fourth Proportional to 855,656.45, 1,180,435.16 and 515,935.97

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Solution

The fourth proportional to 855,656.45, 1,180,435.16 and 515,935.97 is: 711,768.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,656.45 : 1,180,435.16 = 515,935.97 : x
  2. Step 2: Convert to fraction form
    855,656.45/1,180,435.16 = 515,935.97/x
  3. Step 3: Cross multiply
    855,656.45x = 1,180,435.16 × 515,935.97
  4. Step 4: Simplify right side
    855,656.45x = 609,028,956,717.03
  5. Step 5: Solve for x
    x = 609,028,956,717.03/855,656.45
  6. Step 6: Final answer
    x = 711,768.09

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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.