Home / 804,905.20-1,205,975.40-383,273.20

Finding the Fourth Proportional to 804,905.20, 1,205,975.40 and 383,273.20

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Solution

The fourth proportional to 804,905.20, 1,205,975.40 and 383,273.20 is: 574,251.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,905.20 : 1,205,975.40 = 383,273.20 : x
  2. Step 2: Convert to fraction form
    804,905.20/1,205,975.40 = 383,273.20/x
  3. Step 3: Cross multiply
    804,905.20x = 1,205,975.40 × 383,273.20
  4. Step 4: Simplify right side
    804,905.20x = 462,218,050,679.28
  5. Step 5: Solve for x
    x = 462,218,050,679.28/804,905.20
  6. Step 6: Final answer
    x = 574,251.54

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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.