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Finding the Fourth Proportional to 511,554.68, 767,120.89 and 174,622.50

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Solution

The fourth proportional to 511,554.68, 767,120.89 and 174,622.50 is: 261,861.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,554.68 : 767,120.89 = 174,622.50 : x
  2. Step 2: Convert to fraction form
    511,554.68/767,120.89 = 174,622.50/x
  3. Step 3: Cross multiply
    511,554.68x = 767,120.89 × 174,622.50
  4. Step 4: Simplify right side
    511,554.68x = 133,956,564,514.16
  5. Step 5: Solve for x
    x = 133,956,564,514.16/511,554.68
  6. Step 6: Final answer
    x = 261,861.67

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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.