Home / 1,295,560.82-1,939,355.42-845,312.20

Finding the Fourth Proportional to 1,295,560.82, 1,939,355.42 and 845,312.20

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Solution

The fourth proportional to 1,295,560.82, 1,939,355.42 and 845,312.20 is: 1,265,367.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,560.82 : 1,939,355.42 = 845,312.20 : x
  2. Step 2: Convert to fraction form
    1,295,560.82/1,939,355.42 = 845,312.20/x
  3. Step 3: Cross multiply
    1,295,560.82x = 1,939,355.42 × 845,312.20
  4. Step 4: Simplify right side
    1,295,560.82x = 1,639,360,796,662.12
  5. Step 5: Solve for x
    x = 1,639,360,796,662.12/1,295,560.82
  6. Step 6: Final answer
    x = 1,265,367.69

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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.