Home / 1,368,429.67-1,888,288.26-756,483.78

Finding the Fourth Proportional to 1,368,429.67, 1,888,288.26 and 756,483.78

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Solution

The fourth proportional to 1,368,429.67, 1,888,288.26 and 756,483.78 is: 1,043,867.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,429.67 : 1,888,288.26 = 756,483.78 : x
  2. Step 2: Convert to fraction form
    1,368,429.67/1,888,288.26 = 756,483.78/x
  3. Step 3: Cross multiply
    1,368,429.67x = 1,888,288.26 × 756,483.78
  4. Step 4: Simplify right side
    1,368,429.67x = 1,428,459,440,654.42
  5. Step 5: Solve for x
    x = 1,428,459,440,654.42/1,368,429.67
  6. Step 6: Final answer
    x = 1,043,867.63

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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.