Home / 691,387.40-1,036,908.30-264,830.60

Finding the Fourth Proportional to 691,387.40, 1,036,908.30 and 264,830.60

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Solution

The fourth proportional to 691,387.40, 1,036,908.30 and 264,830.60 is: 397,179.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,387.40 : 1,036,908.30 = 264,830.60 : x
  2. Step 2: Convert to fraction form
    691,387.40/1,036,908.30 = 264,830.60/x
  3. Step 3: Cross multiply
    691,387.40x = 1,036,908.30 × 264,830.60
  4. Step 4: Simplify right side
    691,387.40x = 274,605,047,233.98
  5. Step 5: Solve for x
    x = 274,605,047,233.98/691,387.40
  6. Step 6: Final answer
    x = 397,179.71

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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.