Home / 831,530.61-1,147,512.33-449,557.29

Finding the Fourth Proportional to 831,530.61, 1,147,512.33 and 449,557.29

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Solution

The fourth proportional to 831,530.61, 1,147,512.33 and 449,557.29 is: 620,389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,530.61 : 1,147,512.33 = 449,557.29 : x
  2. Step 2: Convert to fraction form
    831,530.61/1,147,512.33 = 449,557.29/x
  3. Step 3: Cross multiply
    831,530.61x = 1,147,512.33 × 449,557.29
  4. Step 4: Simplify right side
    831,530.61x = 515,872,533,316.39
  5. Step 5: Solve for x
    x = 515,872,533,316.39/831,530.61
  6. Step 6: Final answer
    x = 620,389.11

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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.