Home / 986,450.80-1,479,676.20-355,385.20

Finding the Fourth Proportional to 986,450.80, 1,479,676.20 and 355,385.20

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Solution

The fourth proportional to 986,450.80, 1,479,676.20 and 355,385.20 is: 533,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,450.80 : 1,479,676.20 = 355,385.20 : x
  2. Step 2: Convert to fraction form
    986,450.80/1,479,676.20 = 355,385.20/x
  3. Step 3: Cross multiply
    986,450.80x = 1,479,676.20 × 355,385.20
  4. Step 4: Simplify right side
    986,450.80x = 525,855,022,272.24
  5. Step 5: Solve for x
    x = 525,855,022,272.24/986,450.80
  6. Step 6: Final answer
    x = 533,077.80

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Double scale
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Similar ratio
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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.