Home / 831,311.20-1,248,195.60-644,533.60

Finding the Fourth Proportional to 831,311.20, 1,248,195.60 and 644,533.60

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Solution

The fourth proportional to 831,311.20, 1,248,195.60 and 644,533.60 is: 967,753.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,311.20 : 1,248,195.60 = 644,533.60 : x
  2. Step 2: Convert to fraction form
    831,311.20/1,248,195.60 = 644,533.60/x
  3. Step 3: Cross multiply
    831,311.20x = 1,248,195.60 × 644,533.60
  4. Step 4: Simplify right side
    831,311.20x = 804,504,003,572.16
  5. Step 5: Solve for x
    x = 804,504,003,572.16/831,311.20
  6. Step 6: Final answer
    x = 967,753.12

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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.