Home / 699,022.55-1,048,536.30-212,709.38

Finding the Fourth Proportional to 699,022.55, 1,048,536.30 and 212,709.38

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Solution

The fourth proportional to 699,022.55, 1,048,536.30 and 212,709.38 is: 319,064.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,022.55 : 1,048,536.30 = 212,709.38 : x
  2. Step 2: Convert to fraction form
    699,022.55/1,048,536.30 = 212,709.38/x
  3. Step 3: Cross multiply
    699,022.55x = 1,048,536.30 × 212,709.38
  4. Step 4: Simplify right side
    699,022.55x = 223,033,501,037.81
  5. Step 5: Solve for x
    x = 223,033,501,037.81/699,022.55
  6. Step 6: Final answer
    x = 319,064.82

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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.