Home / 1,438,885.96-1,985,902.74-1,375,111.24

Finding the Fourth Proportional to 1,438,885.96, 1,985,902.74 and 1,375,111.24

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Solution

The fourth proportional to 1,438,885.96, 1,985,902.74 and 1,375,111.24 is: 1,897,882.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,885.96 : 1,985,902.74 = 1,375,111.24 : x
  2. Step 2: Convert to fraction form
    1,438,885.96/1,985,902.74 = 1,375,111.24/x
  3. Step 3: Cross multiply
    1,438,885.96x = 1,985,902.74 × 1,375,111.24
  4. Step 4: Simplify right side
    1,438,885.96x = 2,730,837,179,320.80
  5. Step 5: Solve for x
    x = 2,730,837,179,320.80/1,438,885.96
  6. Step 6: Final answer
    x = 1,897,882.98

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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.