Home / 929,409.76-1,394,181.27-389,122.34

Finding the Fourth Proportional to 929,409.76, 1,394,181.27 and 389,122.34

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Solution

The fourth proportional to 929,409.76, 1,394,181.27 and 389,122.34 is: 583,711.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,409.76 : 1,394,181.27 = 389,122.34 : x
  2. Step 2: Convert to fraction form
    929,409.76/1,394,181.27 = 389,122.34/x
  3. Step 3: Cross multiply
    929,409.76x = 1,394,181.27 × 389,122.34
  4. Step 4: Simplify right side
    929,409.76x = 542,507,078,166.57
  5. Step 5: Solve for x
    x = 542,507,078,166.57/929,409.76
  6. Step 6: Final answer
    x = 583,711.41

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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.