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Finding the Fourth Proportional to 398,500.55, 597,455.56 and 240,692.10

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Solution

The fourth proportional to 398,500.55, 597,455.56 and 240,692.10 is: 360,859.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,500.55 : 597,455.56 = 240,692.10 : x
  2. Step 2: Convert to fraction form
    398,500.55/597,455.56 = 240,692.10/x
  3. Step 3: Cross multiply
    398,500.55x = 597,455.56 × 240,692.10
  4. Step 4: Simplify right side
    398,500.55x = 143,802,831,453.48
  5. Step 5: Solve for x
    x = 143,802,831,453.48/398,500.55
  6. Step 6: Final answer
    x = 360,859.81

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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.