Home / 1,438,568.28-1,985,254.11-793,986.90

Finding the Fourth Proportional to 1,438,568.28, 1,985,254.11 and 793,986.90

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Solution

The fourth proportional to 1,438,568.28, 1,985,254.11 and 793,986.90 is: 1,095,718.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,568.28 : 1,985,254.11 = 793,986.90 : x
  2. Step 2: Convert to fraction form
    1,438,568.28/1,985,254.11 = 793,986.90/x
  3. Step 3: Cross multiply
    1,438,568.28x = 1,985,254.11 × 793,986.90
  4. Step 4: Simplify right side
    1,438,568.28x = 1,576,265,756,511.16
  5. Step 5: Solve for x
    x = 1,576,265,756,511.16/1,438,568.28
  6. Step 6: Final answer
    x = 1,095,718.42

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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.