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Finding the Fourth Proportional to 543,123.20, 814,830.60 and 484,365.80

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Solution

The fourth proportional to 543,123.20, 814,830.60 and 484,365.80 is: 726,678.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,123.20 : 814,830.60 = 484,365.80 : x
  2. Step 2: Convert to fraction form
    543,123.20/814,830.60 = 484,365.80/x
  3. Step 3: Cross multiply
    543,123.20x = 814,830.60 × 484,365.80
  4. Step 4: Simplify right side
    543,123.20x = 394,676,075,433.48
  5. Step 5: Solve for x
    x = 394,676,075,433.48/543,123.20
  6. Step 6: Final answer
    x = 726,678.73

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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.