Home / 664,834.50-997,809.66-345,182.58

Finding the Fourth Proportional to 664,834.50, 997,809.66 and 345,182.58

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Solution

The fourth proportional to 664,834.50, 997,809.66 and 345,182.58 is: 518,063.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,834.50 : 997,809.66 = 345,182.58 : x
  2. Step 2: Convert to fraction form
    664,834.50/997,809.66 = 345,182.58/x
  3. Step 3: Cross multiply
    664,834.50x = 997,809.66 × 345,182.58
  4. Step 4: Simplify right side
    664,834.50x = 344,426,512,787.72
  5. Step 5: Solve for x
    x = 344,426,512,787.72/664,834.50
  6. Step 6: Final answer
    x = 518,063.54

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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.