Home / 380,102.22-569,759.67-312,835.55

Finding the Fourth Proportional to 380,102.22, 569,759.67 and 312,835.55

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Solution

The fourth proportional to 380,102.22, 569,759.67 and 312,835.55 is: 468,929.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,102.22 : 569,759.67 = 312,835.55 : x
  2. Step 2: Convert to fraction form
    380,102.22/569,759.67 = 312,835.55/x
  3. Step 3: Cross multiply
    380,102.22x = 569,759.67 × 312,835.55
  4. Step 4: Simplify right side
    380,102.22x = 178,241,076,883.47
  5. Step 5: Solve for x
    x = 178,241,076,883.47/380,102.22
  6. Step 6: Final answer
    x = 468,929.32

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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.