Home / 820,201.40-1,230,647.70-446,492.60

Finding the Fourth Proportional to 820,201.40, 1,230,647.70 and 446,492.60

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Solution

The fourth proportional to 820,201.40, 1,230,647.70 and 446,492.60 is: 669,927.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,201.40 : 1,230,647.70 = 446,492.60 : x
  2. Step 2: Convert to fraction form
    820,201.40/1,230,647.70 = 446,492.60/x
  3. Step 3: Cross multiply
    820,201.40x = 1,230,647.70 × 446,492.60
  4. Step 4: Simplify right side
    820,201.40x = 549,475,091,257.02
  5. Step 5: Solve for x
    x = 549,475,091,257.02/820,201.40
  6. Step 6: Final answer
    x = 669,927.03

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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.