Home / 831,416.95-1,247,126.48-200,330.76

Finding the Fourth Proportional to 831,416.95, 1,247,126.48 and 200,330.76

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Solution

The fourth proportional to 831,416.95, 1,247,126.48 and 200,330.76 is: 300,496.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,416.95 : 1,247,126.48 = 200,330.76 : x
  2. Step 2: Convert to fraction form
    831,416.95/1,247,126.48 = 200,330.76/x
  3. Step 3: Cross multiply
    831,416.95x = 1,247,126.48 × 200,330.76
  4. Step 4: Simplify right side
    831,416.95x = 249,837,795,554.53
  5. Step 5: Solve for x
    x = 249,837,795,554.53/831,416.95
  6. Step 6: Final answer
    x = 300,496.39

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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.