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Finding the Fourth Proportional to 664,906.60, 997,068.30 and 265,414.60

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Solution

The fourth proportional to 664,906.60, 997,068.30 and 265,414.60 is: 398,005.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,906.60 : 997,068.30 = 265,414.60 : x
  2. Step 2: Convert to fraction form
    664,906.60/997,068.30 = 265,414.60/x
  3. Step 3: Cross multiply
    664,906.60x = 997,068.30 × 265,414.60
  4. Step 4: Simplify right side
    664,906.60x = 264,636,484,017.18
  5. Step 5: Solve for x
    x = 264,636,484,017.18/664,906.60
  6. Step 6: Final answer
    x = 398,005.50

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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.