Home / 831,870.51-1,147,982.07-449,897.30

Finding the Fourth Proportional to 831,870.51, 1,147,982.07 and 449,897.30

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Solution

The fourth proportional to 831,870.51, 1,147,982.07 and 449,897.30 is: 620,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,870.51 : 1,147,982.07 = 449,897.30 : x
  2. Step 2: Convert to fraction form
    831,870.51/1,147,982.07 = 449,897.30/x
  3. Step 3: Cross multiply
    831,870.51x = 1,147,982.07 × 449,897.30
  4. Step 4: Simplify right side
    831,870.51x = 516,474,033,741.41
  5. Step 5: Solve for x
    x = 516,474,033,741.41/831,870.51
  6. Step 6: Final answer
    x = 620,858.69

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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.