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Finding the Fourth Proportional to 554,273.70, 831,738.60 and 365,280.45

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Solution

The fourth proportional to 554,273.70, 831,738.60 and 365,280.45 is: 548,136.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,273.70 : 831,738.60 = 365,280.45 : x
  2. Step 2: Convert to fraction form
    554,273.70/831,738.60 = 365,280.45/x
  3. Step 3: Cross multiply
    554,273.70x = 831,738.60 × 365,280.45
  4. Step 4: Simplify right side
    554,273.70x = 303,817,850,090.37
  5. Step 5: Solve for x
    x = 303,817,850,090.37/554,273.70
  6. Step 6: Final answer
    x = 548,136.87

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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.