Home / 1,347,245.42-1,856,040.55-938,608.11

Finding the Fourth Proportional to 1,347,245.42, 1,856,040.55 and 938,608.11

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Solution

The fourth proportional to 1,347,245.42, 1,856,040.55 and 938,608.11 is: 1,293,078.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,245.42 : 1,856,040.55 = 938,608.11 : x
  2. Step 2: Convert to fraction form
    1,347,245.42/1,856,040.55 = 938,608.11/x
  3. Step 3: Cross multiply
    1,347,245.42x = 1,856,040.55 × 938,608.11
  4. Step 4: Simplify right side
    1,347,245.42x = 1,742,094,710,372.34
  5. Step 5: Solve for x
    x = 1,742,094,710,372.34/1,347,245.42
  6. Step 6: Final answer
    x = 1,293,078.97

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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.