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Finding the Fourth Proportional to 484,622.40, 727,365.60 and 284,692.80

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Solution

The fourth proportional to 484,622.40, 727,365.60 and 284,692.80 is: 427,292.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,622.40 : 727,365.60 = 284,692.80 : x
  2. Step 2: Convert to fraction form
    484,622.40/727,365.60 = 284,692.80/x
  3. Step 3: Cross multiply
    484,622.40x = 727,365.60 × 284,692.80
  4. Step 4: Simplify right side
    484,622.40x = 207,075,749,287.68
  5. Step 5: Solve for x
    x = 207,075,749,287.68/484,622.40
  6. Step 6: Final answer
    x = 427,292.98

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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.