Home / 1,231,427.94-1,699,475.64-687,668.83

Finding the Fourth Proportional to 1,231,427.94, 1,699,475.64 and 687,668.83

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Solution

The fourth proportional to 1,231,427.94, 1,699,475.64 and 687,668.83 is: 949,041.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,427.94 : 1,699,475.64 = 687,668.83 : x
  2. Step 2: Convert to fraction form
    1,231,427.94/1,699,475.64 = 687,668.83/x
  3. Step 3: Cross multiply
    1,231,427.94x = 1,699,475.64 × 687,668.83
  4. Step 4: Simplify right side
    1,231,427.94x = 1,168,676,416,474.92
  5. Step 5: Solve for x
    x = 1,168,676,416,474.92/1,231,427.94
  6. Step 6: Final answer
    x = 949,041.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.