Home / 405,277.37-607,915.30-380,615.23

Finding the Fourth Proportional to 405,277.37, 607,915.30 and 380,615.23

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Solution

The fourth proportional to 405,277.37, 607,915.30 and 380,615.23 is: 570,922.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,277.37 : 607,915.30 = 380,615.23 : x
  2. Step 2: Convert to fraction form
    405,277.37/607,915.30 = 380,615.23/x
  3. Step 3: Cross multiply
    405,277.37x = 607,915.30 × 380,615.23
  4. Step 4: Simplify right side
    405,277.37x = 231,381,821,612.75
  5. Step 5: Solve for x
    x = 231,381,821,612.75/405,277.37
  6. Step 6: Final answer
    x = 570,922.13

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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.