Home / 764,442.72-1,146,835.80-258,974.64

Finding the Fourth Proportional to 764,442.72, 1,146,835.80 and 258,974.64

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Solution

The fourth proportional to 764,442.72, 1,146,835.80 and 258,974.64 is: 388,520.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,442.72 : 1,146,835.80 = 258,974.64 : x
  2. Step 2: Convert to fraction form
    764,442.72/1,146,835.80 = 258,974.64/x
  3. Step 3: Cross multiply
    764,442.72x = 1,146,835.80 × 258,974.64
  4. Step 4: Simplify right side
    764,442.72x = 297,001,388,444.11
  5. Step 5: Solve for x
    x = 297,001,388,444.11/764,442.72
  6. Step 6: Final answer
    x = 388,520.13

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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.