Home / 715,311.32-1,072,800.52-266,243.67

Finding the Fourth Proportional to 715,311.32, 1,072,800.52 and 266,243.67

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Solution

The fourth proportional to 715,311.32, 1,072,800.52 and 266,243.67 is: 399,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,311.32 : 1,072,800.52 = 266,243.67 : x
  2. Step 2: Convert to fraction form
    715,311.32/1,072,800.52 = 266,243.67/x
  3. Step 3: Cross multiply
    715,311.32x = 1,072,800.52 × 266,243.67
  4. Step 4: Simplify right side
    715,311.32x = 285,626,346,291.49
  5. Step 5: Solve for x
    x = 285,626,346,291.49/715,311.32
  6. Step 6: Final answer
    x = 399,303.55

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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.