Home / 1,265,915.80-1,897,561.44-791,511.76

Finding the Fourth Proportional to 1,265,915.80, 1,897,561.44 and 791,511.76

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Solution

The fourth proportional to 1,265,915.80, 1,897,561.44 and 791,511.76 is: 1,186,447.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,915.80 : 1,897,561.44 = 791,511.76 : x
  2. Step 2: Convert to fraction form
    1,265,915.80/1,897,561.44 = 791,511.76/x
  3. Step 3: Cross multiply
    1,265,915.80x = 1,897,561.44 × 791,511.76
  4. Step 4: Simplify right side
    1,265,915.80x = 1,501,942,195,082.53
  5. Step 5: Solve for x
    x = 1,501,942,195,082.53/1,265,915.80
  6. Step 6: Final answer
    x = 1,186,447.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.