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Finding the Fourth Proportional to 567,321.64, 782,880.82 and 309,193.11

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Solution

The fourth proportional to 567,321.64, 782,880.82 and 309,193.11 is: 426,673.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,321.64 : 782,880.82 = 309,193.11 : x
  2. Step 2: Convert to fraction form
    567,321.64/782,880.82 = 309,193.11/x
  3. Step 3: Cross multiply
    567,321.64x = 782,880.82 × 309,193.11
  4. Step 4: Simplify right side
    567,321.64x = 242,061,350,760.24
  5. Step 5: Solve for x
    x = 242,061,350,760.24/567,321.64
  6. Step 6: Final answer
    x = 426,673.93

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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.