Home / 831,308.69-1,147,205.30-449,335.47

Finding the Fourth Proportional to 831,308.69, 1,147,205.30 and 449,335.47

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Solution

The fourth proportional to 831,308.69, 1,147,205.30 and 449,335.47 is: 620,082.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,308.69 : 1,147,205.30 = 449,335.47 : x
  2. Step 2: Convert to fraction form
    831,308.69/1,147,205.30 = 449,335.47/x
  3. Step 3: Cross multiply
    831,308.69x = 1,147,205.30 × 449,335.47
  4. Step 4: Simplify right side
    831,308.69x = 515,480,025,802.63
  5. Step 5: Solve for x
    x = 515,480,025,802.63/831,308.69
  6. Step 6: Final answer
    x = 620,082.57

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1.5x scale

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.