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Finding the Fourth Proportional to 567,230.79, 782,768.34 and 309,109.98

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Solution

The fourth proportional to 567,230.79, 782,768.34 and 309,109.98 is: 426,566.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,230.79 : 782,768.34 = 309,109.98 : x
  2. Step 2: Convert to fraction form
    567,230.79/782,768.34 = 309,109.98/x
  3. Step 3: Cross multiply
    567,230.79x = 782,768.34 × 309,109.98
  4. Step 4: Simplify right side
    567,230.79x = 241,961,505,922.03
  5. Step 5: Solve for x
    x = 241,961,505,922.03/567,230.79
  6. Step 6: Final answer
    x = 426,566.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.