Home / 705,212.80-1,057,819.20-425,276.80

Finding the Fourth Proportional to 705,212.80, 1,057,819.20 and 425,276.80

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Solution

The fourth proportional to 705,212.80, 1,057,819.20 and 425,276.80 is: 637,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,212.80 : 1,057,819.20 = 425,276.80 : x
  2. Step 2: Convert to fraction form
    705,212.80/1,057,819.20 = 425,276.80/x
  3. Step 3: Cross multiply
    705,212.80x = 1,057,819.20 × 425,276.80
  4. Step 4: Simplify right side
    705,212.80x = 449,865,964,354.56
  5. Step 5: Solve for x
    x = 449,865,964,354.56/705,212.80
  6. Step 6: Final answer
    x = 637,915.20

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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.