Home / 831,036.90-1,246,190.85-381,608.40

Finding the Fourth Proportional to 831,036.90, 1,246,190.85 and 381,608.40

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Solution

The fourth proportional to 831,036.90, 1,246,190.85 and 381,608.40 is: 572,245.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,036.90 : 1,246,190.85 = 381,608.40 : x
  2. Step 2: Convert to fraction form
    831,036.90/1,246,190.85 = 381,608.40/x
  3. Step 3: Cross multiply
    831,036.90x = 1,246,190.85 × 381,608.40
  4. Step 4: Simplify right side
    831,036.90x = 475,556,896,363.14
  5. Step 5: Solve for x
    x = 475,556,896,363.14/831,036.90
  6. Step 6: Final answer
    x = 572,245.22

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.