Home / 1,290,604.80-1,779,968.10-1,083,058.44

Finding the Fourth Proportional to 1,290,604.80, 1,779,968.10 and 1,083,058.44

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Solution

The fourth proportional to 1,290,604.80, 1,779,968.10 and 1,083,058.44 is: 1,493,725.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,604.80 : 1,779,968.10 = 1,083,058.44 : x
  2. Step 2: Convert to fraction form
    1,290,604.80/1,779,968.10 = 1,083,058.44/x
  3. Step 3: Cross multiply
    1,290,604.80x = 1,779,968.10 × 1,083,058.44
  4. Step 4: Simplify right side
    1,290,604.80x = 1,927,809,473,635.76
  5. Step 5: Solve for x
    x = 1,927,809,473,635.76/1,290,604.80
  6. Step 6: Final answer
    x = 1,493,725.63

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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.