Home / 855,657.45-1,180,436.53-515,936.97

Finding the Fourth Proportional to 855,657.45, 1,180,436.53 and 515,936.97

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Solution

The fourth proportional to 855,657.45, 1,180,436.53 and 515,936.97 is: 711,769.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,657.45 : 1,180,436.53 = 515,936.97 : x
  2. Step 2: Convert to fraction form
    855,657.45/1,180,436.53 = 515,936.97/x
  3. Step 3: Cross multiply
    855,657.45x = 1,180,436.53 × 515,936.97
  4. Step 4: Simplify right side
    855,657.45x = 609,030,846,565.51
  5. Step 5: Solve for x
    x = 609,030,846,565.51/855,657.45
  6. Step 6: Final answer
    x = 711,769.47

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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.