Home / 739,965.57-1,109,498.90-290,147.54

Finding the Fourth Proportional to 739,965.57, 1,109,498.90 and 290,147.54

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Solution

The fourth proportional to 739,965.57, 1,109,498.90 and 290,147.54 is: 435,045.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,965.57 : 1,109,498.90 = 290,147.54 : x
  2. Step 2: Convert to fraction form
    739,965.57/1,109,498.90 = 290,147.54/x
  3. Step 3: Cross multiply
    739,965.57x = 1,109,498.90 × 290,147.54
  4. Step 4: Simplify right side
    739,965.57x = 321,918,369,469.47
  5. Step 5: Solve for x
    x = 321,918,369,469.47/739,965.57
  6. Step 6: Final answer
    x = 435,045.06

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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.