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Finding the Fourth Proportional to 383,910.60, 575,865.90 and 303,731.40

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Solution

The fourth proportional to 383,910.60, 575,865.90 and 303,731.40 is: 455,597.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,910.60 : 575,865.90 = 303,731.40 : x
  2. Step 2: Convert to fraction form
    383,910.60/575,865.90 = 303,731.40/x
  3. Step 3: Cross multiply
    383,910.60x = 575,865.90 × 303,731.40
  4. Step 4: Simplify right side
    383,910.60x = 174,908,556,019.26
  5. Step 5: Solve for x
    x = 174,908,556,019.26/383,910.60
  6. Step 6: Final answer
    x = 455,597.10

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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.