Home / 1,234,491.68-1,702,912.64-718,187.60

Finding the Fourth Proportional to 1,234,491.68, 1,702,912.64 and 718,187.60

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Solution

The fourth proportional to 1,234,491.68, 1,702,912.64 and 718,187.60 is: 990,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234,491.68 : 1,702,912.64 = 718,187.60 : x
  2. Step 2: Convert to fraction form
    1,234,491.68/1,702,912.64 = 718,187.60/x
  3. Step 3: Cross multiply
    1,234,491.68x = 1,702,912.64 × 718,187.60
  4. Step 4: Simplify right side
    1,234,491.68x = 1,223,010,741,931.26
  5. Step 5: Solve for x
    x = 1,223,010,741,931.26/1,234,491.68
  6. Step 6: Final answer
    x = 990,699.87

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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.