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Finding the Fourth Proportional to 539,045.65, 809,094.33 and 445,231.56

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Solution

The fourth proportional to 539,045.65, 809,094.33 and 445,231.56 is: 668,281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,045.65 : 809,094.33 = 445,231.56 : x
  2. Step 2: Convert to fraction form
    539,045.65/809,094.33 = 445,231.56/x
  3. Step 3: Cross multiply
    539,045.65x = 809,094.33 × 445,231.56
  4. Step 4: Simplify right side
    539,045.65x = 360,234,330,733.06
  5. Step 5: Solve for x
    x = 360,234,330,733.06/539,045.65
  6. Step 6: Final answer
    x = 668,281.68

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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.