Home / 739,962.45-1,109,494.21-290,144.40

Finding the Fourth Proportional to 739,962.45, 1,109,494.21 and 290,144.40

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Solution

The fourth proportional to 739,962.45, 1,109,494.21 and 290,144.40 is: 435,040.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,962.45 : 1,109,494.21 = 290,144.40 : x
  2. Step 2: Convert to fraction form
    739,962.45/1,109,494.21 = 290,144.40/x
  3. Step 3: Cross multiply
    739,962.45x = 1,109,494.21 × 290,144.40
  4. Step 4: Simplify right side
    739,962.45x = 321,913,524,865.73
  5. Step 5: Solve for x
    x = 321,913,524,865.73/739,962.45
  6. Step 6: Final answer
    x = 435,040.36

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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.