Home / 1,284,741-1,927,242.72-443,290.32

Finding the Fourth Proportional to 1,284,741, 1,927,242.72 and 443,290.32

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Solution

The fourth proportional to 1,284,741, 1,927,242.72 and 443,290.32 is: 664,980.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,741 : 1,927,242.72 = 443,290.32 : x
  2. Step 2: Convert to fraction form
    1,284,741/1,927,242.72 = 443,290.32/x
  3. Step 3: Cross multiply
    1,284,741x = 1,927,242.72 × 443,290.32
  4. Step 4: Simplify right side
    1,284,741x = 854,328,042,066.47
  5. Step 5: Solve for x
    x = 854,328,042,066.47/1,284,741
  6. Step 6: Final answer
    x = 664,980.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.