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Finding the Fourth Proportional to 384,059.60, 576,089.40 and 345,352.40

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Solution

The fourth proportional to 384,059.60, 576,089.40 and 345,352.40 is: 518,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,059.60 : 576,089.40 = 345,352.40 : x
  2. Step 2: Convert to fraction form
    384,059.60/576,089.40 = 345,352.40/x
  3. Step 3: Cross multiply
    384,059.60x = 576,089.40 × 345,352.40
  4. Step 4: Simplify right side
    384,059.60x = 198,953,856,904.56
  5. Step 5: Solve for x
    x = 198,953,856,904.56/384,059.60
  6. Step 6: Final answer
    x = 518,028.60

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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.