Home / 739,242.12-1,108,982.79-289,719.24

Finding the Fourth Proportional to 739,242.12, 1,108,982.79 and 289,719.24

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Solution

The fourth proportional to 739,242.12, 1,108,982.79 and 289,719.24 is: 434,625.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,242.12 : 1,108,982.79 = 289,719.24 : x
  2. Step 2: Convert to fraction form
    739,242.12/1,108,982.79 = 289,719.24/x
  3. Step 3: Cross multiply
    739,242.12x = 1,108,982.79 × 289,719.24
  4. Step 4: Simplify right side
    739,242.12x = 321,293,651,091.88
  5. Step 5: Solve for x
    x = 321,293,651,091.88/739,242.12
  6. Step 6: Final answer
    x = 434,625.74

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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.