Home / 855,656.95-1,180,435.84-515,936.47

Finding the Fourth Proportional to 855,656.95, 1,180,435.84 and 515,936.47

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Solution

The fourth proportional to 855,656.95, 1,180,435.84 and 515,936.47 is: 711,768.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,656.95 : 1,180,435.84 = 515,936.47 : x
  2. Step 2: Convert to fraction form
    855,656.95/1,180,435.84 = 515,936.47/x
  3. Step 3: Cross multiply
    855,656.95x = 1,180,435.84 × 515,936.47
  4. Step 4: Simplify right side
    855,656.95x = 609,029,900,351.09
  5. Step 5: Solve for x
    x = 609,029,900,351.09/855,656.95
  6. Step 6: Final answer
    x = 711,768.78

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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.