Home / 1,290,888.64-1,781,556.96-739,677.34

Finding the Fourth Proportional to 1,290,888.64, 1,781,556.96 and 739,677.34

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Solution

The fourth proportional to 1,290,888.64, 1,781,556.96 and 739,677.34 is: 1,020,829.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,888.64 : 1,781,556.96 = 739,677.34 : x
  2. Step 2: Convert to fraction form
    1,290,888.64/1,781,556.96 = 739,677.34/x
  3. Step 3: Cross multiply
    1,290,888.64x = 1,781,556.96 × 739,677.34
  4. Step 4: Simplify right side
    1,290,888.64x = 1,317,777,313,231.29
  5. Step 5: Solve for x
    x = 1,317,777,313,231.29/1,290,888.64
  6. Step 6: Final answer
    x = 1,020,829.58

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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.