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Finding the Fourth Proportional to 408,035.60, 612,053.40 and 347,674.40

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Solution

The fourth proportional to 408,035.60, 612,053.40 and 347,674.40 is: 521,511.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,035.60 : 612,053.40 = 347,674.40 : x
  2. Step 2: Convert to fraction form
    408,035.60/612,053.40 = 347,674.40/x
  3. Step 3: Cross multiply
    408,035.60x = 612,053.40 × 347,674.40
  4. Step 4: Simplify right side
    408,035.60x = 212,795,298,612.96
  5. Step 5: Solve for x
    x = 212,795,298,612.96/408,035.60
  6. Step 6: Final answer
    x = 521,511.60

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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.