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Finding the Fourth Proportional to 378,004.60, 567,006.90 and 308,020.60

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Solution

The fourth proportional to 378,004.60, 567,006.90 and 308,020.60 is: 462,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,004.60 : 567,006.90 = 308,020.60 : x
  2. Step 2: Convert to fraction form
    378,004.60/567,006.90 = 308,020.60/x
  3. Step 3: Cross multiply
    378,004.60x = 567,006.90 × 308,020.60
  4. Step 4: Simplify right side
    378,004.60x = 174,649,805,542.14
  5. Step 5: Solve for x
    x = 174,649,805,542.14/378,004.60
  6. Step 6: Final answer
    x = 462,030.90

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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.