Home / 871,396.10-1,307,315.92-511,870.94

Finding the Fourth Proportional to 871,396.10, 1,307,315.92 and 511,870.94

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Solution

The fourth proportional to 871,396.10, 1,307,315.92 and 511,870.94 is: 767,936.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,396.10 : 1,307,315.92 = 511,870.94 : x
  2. Step 2: Convert to fraction form
    871,396.10/1,307,315.92 = 511,870.94/x
  3. Step 3: Cross multiply
    871,396.10x = 1,307,315.92 × 511,870.94
  4. Step 4: Simplify right side
    871,396.10x = 669,177,028,847.37
  5. Step 5: Solve for x
    x = 669,177,028,847.37/871,396.10
  6. Step 6: Final answer
    x = 767,936.68

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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.