Home / 820,315.55-1,228,090.41-477,714.41

Finding the Fourth Proportional to 820,315.55, 1,228,090.41 and 477,714.41

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Solution

The fourth proportional to 820,315.55, 1,228,090.41 and 477,714.41 is: 715,183.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,315.55 : 1,228,090.41 = 477,714.41 : x
  2. Step 2: Convert to fraction form
    820,315.55/1,228,090.41 = 477,714.41/x
  3. Step 3: Cross multiply
    820,315.55x = 1,228,090.41 × 477,714.41
  4. Step 4: Simplify right side
    820,315.55x = 586,676,484,104.70
  5. Step 5: Solve for x
    x = 586,676,484,104.70/820,315.55
  6. Step 6: Final answer
    x = 715,183.91

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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.