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Finding the Fourth Proportional to 490,775.13, 736,556.34 and 254,185.47

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Solution

The fourth proportional to 490,775.13, 736,556.34 and 254,185.47 is: 381,482.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,775.13 : 736,556.34 = 254,185.47 : x
  2. Step 2: Convert to fraction form
    490,775.13/736,556.34 = 254,185.47/x
  3. Step 3: Cross multiply
    490,775.13x = 736,556.34 × 254,185.47
  4. Step 4: Simplify right side
    490,775.13x = 187,221,919,464.38
  5. Step 5: Solve for x
    x = 187,221,919,464.38/490,775.13
  6. Step 6: Final answer
    x = 381,482.08

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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.