Home / 1,280,885.21-1,767,618.53-729,600.83

Finding the Fourth Proportional to 1,280,885.21, 1,767,618.53 and 729,600.83

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Solution

The fourth proportional to 1,280,885.21, 1,767,618.53 and 729,600.83 is: 1,006,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,885.21 : 1,767,618.53 = 729,600.83 : x
  2. Step 2: Convert to fraction form
    1,280,885.21/1,767,618.53 = 729,600.83/x
  3. Step 3: Cross multiply
    1,280,885.21x = 1,767,618.53 × 729,600.83
  4. Step 4: Simplify right side
    1,280,885.21x = 1,289,655,946,611.38
  5. Step 5: Solve for x
    x = 1,289,655,946,611.38/1,280,885.21
  6. Step 6: Final answer
    x = 1,006,847.40

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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.