Home / 738,659.20-1,108,863.60-419,065.60

Finding the Fourth Proportional to 738,659.20, 1,108,863.60 and 419,065.60

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Solution

The fourth proportional to 738,659.20, 1,108,863.60 and 419,065.60 is: 629,094.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,659.20 : 1,108,863.60 = 419,065.60 : x
  2. Step 2: Convert to fraction form
    738,659.20/1,108,863.60 = 419,065.60/x
  3. Step 3: Cross multiply
    738,659.20x = 1,108,863.60 × 419,065.60
  4. Step 4: Simplify right side
    738,659.20x = 464,686,589,852.16
  5. Step 5: Solve for x
    x = 464,686,589,852.16/738,659.20
  6. Step 6: Final answer
    x = 629,094.70

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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.