Home / 919,730.86-1,268,142.96-629,482.48

Finding the Fourth Proportional to 919,730.86, 1,268,142.96 and 629,482.48

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Solution

The fourth proportional to 919,730.86, 1,268,142.96 and 629,482.48 is: 867,942.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,730.86 : 1,268,142.96 = 629,482.48 : x
  2. Step 2: Convert to fraction form
    919,730.86/1,268,142.96 = 629,482.48/x
  3. Step 3: Cross multiply
    919,730.86x = 1,268,142.96 × 629,482.48
  4. Step 4: Simplify right side
    919,730.86x = 798,273,775,455.34
  5. Step 5: Solve for x
    x = 798,273,775,455.34/919,730.86
  6. Step 6: Final answer
    x = 867,942.80

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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.