Home / 1,265,915.79-1,897,561.45-791,511.75

Finding the Fourth Proportional to 1,265,915.79, 1,897,561.45 and 791,511.75

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Solution

The fourth proportional to 1,265,915.79, 1,897,561.45 and 791,511.75 is: 1,186,447.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,915.79 : 1,897,561.45 = 791,511.75 : x
  2. Step 2: Convert to fraction form
    1,265,915.79/1,897,561.45 = 791,511.75/x
  3. Step 3: Cross multiply
    1,265,915.79x = 1,897,561.45 × 791,511.75
  4. Step 4: Simplify right side
    1,265,915.79x = 1,501,942,184,022.04
  5. Step 5: Solve for x
    x = 1,501,942,184,022.04/1,265,915.79
  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.