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Finding the Fourth Proportional to 370,599.44, 511,458.72 and 310,063.28

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Solution

The fourth proportional to 370,599.44, 511,458.72 and 310,063.28 is: 427,913.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,599.44 : 511,458.72 = 310,063.28 : x
  2. Step 2: Convert to fraction form
    370,599.44/511,458.72 = 310,063.28/x
  3. Step 3: Cross multiply
    370,599.44x = 511,458.72 × 310,063.28
  4. Step 4: Simplify right side
    370,599.44x = 158,584,568,307.80
  5. Step 5: Solve for x
    x = 158,584,568,307.80/370,599.44
  6. Step 6: Final answer
    x = 427,913.67

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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.