Home / 831,125.70-1,246,688.90-200,039.51

Finding the Fourth Proportional to 831,125.70, 1,246,688.90 and 200,039.51

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Solution

The fourth proportional to 831,125.70, 1,246,688.90 and 200,039.51 is: 300,059.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,125.70 : 1,246,688.90 = 200,039.51 : x
  2. Step 2: Convert to fraction form
    831,125.70/1,246,688.90 = 200,039.51/x
  3. Step 3: Cross multiply
    831,125.70x = 1,246,688.90 × 200,039.51
  4. Step 4: Simplify right side
    831,125.70x = 249,387,038,794.96
  5. Step 5: Solve for x
    x = 249,387,038,794.96/831,125.70
  6. Step 6: Final answer
    x = 300,059.35

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Double scale
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Similar ratio
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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.