Home / 831,255.56-1,147,109.66-468,676.20

Finding the Fourth Proportional to 831,255.56, 1,147,109.66 and 468,676.20

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Solution

The fourth proportional to 831,255.56, 1,147,109.66 and 468,676.20 is: 646,760.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,255.56 : 1,147,109.66 = 468,676.20 : x
  2. Step 2: Convert to fraction form
    831,255.56/1,147,109.66 = 468,676.20/x
  3. Step 3: Cross multiply
    831,255.56x = 1,147,109.66 × 468,676.20
  4. Step 4: Simplify right side
    831,255.56x = 537,622,996,432.09
  5. Step 5: Solve for x
    x = 537,622,996,432.09/831,255.56
  6. Step 6: Final answer
    x = 646,760.18

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Double scale
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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.