Home / 1,375,859.85-1,898,861.40-831,999.39

Finding the Fourth Proportional to 1,375,859.85, 1,898,861.40 and 831,999.39

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Solution

The fourth proportional to 1,375,859.85, 1,898,861.40 and 831,999.39 is: 1,148,264.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,859.85 : 1,898,861.40 = 831,999.39 : x
  2. Step 2: Convert to fraction form
    1,375,859.85/1,898,861.40 = 831,999.39/x
  3. Step 3: Cross multiply
    1,375,859.85x = 1,898,861.40 × 831,999.39
  4. Step 4: Simplify right side
    1,375,859.85x = 1,579,851,526,494.55
  5. Step 5: Solve for x
    x = 1,579,851,526,494.55/1,375,859.85
  6. Step 6: Final answer
    x = 1,148,264.87

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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.