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Finding the Fourth Proportional to 511,850.30, 767,775.36 and 274,866.98

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Solution

The fourth proportional to 511,850.30, 767,775.36 and 274,866.98 is: 412,300.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,850.30 : 767,775.36 = 274,866.98 : x
  2. Step 2: Convert to fraction form
    511,850.30/767,775.36 = 274,866.98/x
  3. Step 3: Cross multiply
    511,850.30x = 767,775.36 × 274,866.98
  4. Step 4: Simplify right side
    511,850.30x = 211,036,094,521.61
  5. Step 5: Solve for x
    x = 211,036,094,521.61/511,850.30
  6. Step 6: Final answer
    x = 412,300.42

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1.5x scale

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.