Home / 777,343.37-1,072,162.83-515,224.62

Finding the Fourth Proportional to 777,343.37, 1,072,162.83 and 515,224.62

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Solution

The fourth proportional to 777,343.37, 1,072,162.83 and 515,224.62 is: 710,631.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,343.37 : 1,072,162.83 = 515,224.62 : x
  2. Step 2: Convert to fraction form
    777,343.37/1,072,162.83 = 515,224.62/x
  3. Step 3: Cross multiply
    777,343.37x = 1,072,162.83 × 515,224.62
  4. Step 4: Simplify right side
    777,343.37x = 552,404,686,664.88
  5. Step 5: Solve for x
    x = 552,404,686,664.88/777,343.37
  6. Step 6: Final answer
    x = 710,631.51

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1.5x scale

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.