Home / 1,122,300.30-1,683,450.45-280,850.70

Finding the Fourth Proportional to 1,122,300.30, 1,683,450.45 and 280,850.70

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Solution

The fourth proportional to 1,122,300.30, 1,683,450.45 and 280,850.70 is: 421,276.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,300.30 : 1,683,450.45 = 280,850.70 : x
  2. Step 2: Convert to fraction form
    1,122,300.30/1,683,450.45 = 280,850.70/x
  3. Step 3: Cross multiply
    1,122,300.30x = 1,683,450.45 × 280,850.70
  4. Step 4: Simplify right side
    1,122,300.30x = 472,798,237,297.82
  5. Step 5: Solve for x
    x = 472,798,237,297.82/1,122,300.30
  6. Step 6: Final answer
    x = 421,276.05

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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.