Home / 1,151,590.82-1,589,195.48-642,293.18

Finding the Fourth Proportional to 1,151,590.82, 1,589,195.48 and 642,293.18

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Solution

The fourth proportional to 1,151,590.82, 1,589,195.48 and 642,293.18 is: 886,364.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,590.82 : 1,589,195.48 = 642,293.18 : x
  2. Step 2: Convert to fraction form
    1,151,590.82/1,589,195.48 = 642,293.18/x
  3. Step 3: Cross multiply
    1,151,590.82x = 1,589,195.48 × 642,293.18
  4. Step 4: Simplify right side
    1,151,590.82x = 1,020,729,418,490.83
  5. Step 5: Solve for x
    x = 1,020,729,418,490.83/1,151,590.82
  6. Step 6: Final answer
    x = 886,364.67

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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.