Home / 831,870.26-1,147,981.74-449,897.03

Finding the Fourth Proportional to 831,870.26, 1,147,981.74 and 449,897.03

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Solution

The fourth proportional to 831,870.26, 1,147,981.74 and 449,897.03 is: 620,858.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,870.26 : 1,147,981.74 = 449,897.03 : x
  2. Step 2: Convert to fraction form
    831,870.26/1,147,981.74 = 449,897.03/x
  3. Step 3: Cross multiply
    831,870.26x = 1,147,981.74 × 449,897.03
  4. Step 4: Simplify right side
    831,870.26x = 516,473,575,320.23
  5. Step 5: Solve for x
    x = 516,473,575,320.23/831,870.26
  6. Step 6: Final answer
    x = 620,858.32

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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.