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Finding the Fourth Proportional to 492,063.40, 738,386.70 and 324,065.35

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Solution

The fourth proportional to 492,063.40, 738,386.70 and 324,065.35 is: 486,290.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,063.40 : 738,386.70 = 324,065.35 : x
  2. Step 2: Convert to fraction form
    492,063.40/738,386.70 = 324,065.35/x
  3. Step 3: Cross multiply
    492,063.40x = 738,386.70 × 324,065.35
  4. Step 4: Simplify right side
    492,063.40x = 239,285,544,370.85
  5. Step 5: Solve for x
    x = 239,285,544,370.85/492,063.40
  6. Step 6: Final answer
    x = 486,290.07

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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.