Home / 804,715.80-1,205,105.40-383,499.60

Finding the Fourth Proportional to 804,715.80, 1,205,105.40 and 383,499.60

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Solution

The fourth proportional to 804,715.80, 1,205,105.40 and 383,499.60 is: 574,311.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,715.80 : 1,205,105.40 = 383,499.60 : x
  2. Step 2: Convert to fraction form
    804,715.80/1,205,105.40 = 383,499.60/x
  3. Step 3: Cross multiply
    804,715.80x = 1,205,105.40 × 383,499.60
  4. Step 4: Simplify right side
    804,715.80x = 462,157,438,857.84
  5. Step 5: Solve for x
    x = 462,157,438,857.84/804,715.80
  6. Step 6: Final answer
    x = 574,311.38

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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.