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Finding the Fourth Proportional to 664,258.84, 996,919.62 and 348,901.72

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Solution

The fourth proportional to 664,258.84, 996,919.62 and 348,901.72 is: 523,631.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,258.84 : 996,919.62 = 348,901.72 : x
  2. Step 2: Convert to fraction form
    664,258.84/996,919.62 = 348,901.72/x
  3. Step 3: Cross multiply
    664,258.84x = 996,919.62 × 348,901.72
  4. Step 4: Simplify right side
    664,258.84x = 347,826,970,119.75
  5. Step 5: Solve for x
    x = 347,826,970,119.75/664,258.84
  6. Step 6: Final answer
    x = 523,631.68

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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.