Home / 1,287,808.98-1,776,162.32-1,140,791.08

Finding the Fourth Proportional to 1,287,808.98, 1,776,162.32 and 1,140,791.08

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Solution

The fourth proportional to 1,287,808.98, 1,776,162.32 and 1,140,791.08 is: 1,573,393.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,808.98 : 1,776,162.32 = 1,140,791.08 : x
  2. Step 2: Convert to fraction form
    1,287,808.98/1,776,162.32 = 1,140,791.08/x
  3. Step 3: Cross multiply
    1,287,808.98x = 1,776,162.32 × 1,140,791.08
  4. Step 4: Simplify right side
    1,287,808.98x = 2,026,230,131,288.11
  5. Step 5: Solve for x
    x = 2,026,230,131,288.11/1,287,808.98
  6. Step 6: Final answer
    x = 1,573,393.39

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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.