Home / 820,156.20-1,230,234.30-705,994.80

Finding the Fourth Proportional to 820,156.20, 1,230,234.30 and 705,994.80

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Solution

The fourth proportional to 820,156.20, 1,230,234.30 and 705,994.80 is: 1,058,992.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,156.20 : 1,230,234.30 = 705,994.80 : x
  2. Step 2: Convert to fraction form
    820,156.20/1,230,234.30 = 705,994.80/x
  3. Step 3: Cross multiply
    820,156.20x = 1,230,234.30 × 705,994.80
  4. Step 4: Simplify right side
    820,156.20x = 868,539,018,581.64
  5. Step 5: Solve for x
    x = 868,539,018,581.64/820,156.20
  6. Step 6: Final answer
    x = 1,058,992.20

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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.