Home / 1,438,718.24-1,985,431.40-794,138.72

Finding the Fourth Proportional to 1,438,718.24, 1,985,431.40 and 794,138.72

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Solution

The fourth proportional to 1,438,718.24, 1,985,431.40 and 794,138.72 is: 1,095,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,718.24 : 1,985,431.40 = 794,138.72 : x
  2. Step 2: Convert to fraction form
    1,438,718.24/1,985,431.40 = 794,138.72/x
  3. Step 3: Cross multiply
    1,438,718.24x = 1,985,431.40 × 794,138.72
  4. Step 4: Simplify right side
    1,438,718.24x = 1,576,707,950,643.81
  5. Step 5: Solve for x
    x = 1,576,707,950,643.81/1,438,718.24
  6. Step 6: Final answer
    x = 1,095,911.56

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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.