Home / 1,443,872.21-1,992,567.19-790,487.28

Finding the Fourth Proportional to 1,443,872.21, 1,992,567.19 and 790,487.28

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Solution

The fourth proportional to 1,443,872.21, 1,992,567.19 and 790,487.28 is: 1,090,885.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,872.21 : 1,992,567.19 = 790,487.28 : x
  2. Step 2: Convert to fraction form
    1,443,872.21/1,992,567.19 = 790,487.28/x
  3. Step 3: Cross multiply
    1,443,872.21x = 1,992,567.19 × 790,487.28
  4. Step 4: Simplify right side
    1,443,872.21x = 1,575,099,016,264.13
  5. Step 5: Solve for x
    x = 1,575,099,016,264.13/1,443,872.21
  6. Step 6: Final answer
    x = 1,090,885.34

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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.