Home / 739,404.80-1,109,106.92-290,336.96

Finding the Fourth Proportional to 739,404.80, 1,109,106.92 and 290,336.96

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Solution

The fourth proportional to 739,404.80, 1,109,106.92 and 290,336.96 is: 435,505.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,404.80 : 1,109,106.92 = 290,336.96 : x
  2. Step 2: Convert to fraction form
    739,404.80/1,109,106.92 = 290,336.96/x
  3. Step 3: Cross multiply
    739,404.80x = 1,109,106.92 × 290,336.96
  4. Step 4: Simplify right side
    739,404.80x = 322,014,731,467.76
  5. Step 5: Solve for x
    x = 322,014,731,467.76/739,404.80
  6. Step 6: Final answer
    x = 435,505.33

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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.