Home / 739,512.09-1,109,390.78-259,615.35

Finding the Fourth Proportional to 739,512.09, 1,109,390.78 and 259,615.35

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Solution

The fourth proportional to 739,512.09, 1,109,390.78 and 259,615.35 is: 389,466.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,512.09 : 1,109,390.78 = 259,615.35 : x
  2. Step 2: Convert to fraction form
    739,512.09/1,109,390.78 = 259,615.35/x
  3. Step 3: Cross multiply
    739,512.09x = 1,109,390.78 × 259,615.35
  4. Step 4: Simplify right side
    739,512.09x = 288,014,876,285.51
  5. Step 5: Solve for x
    x = 288,014,876,285.51/739,512.09
  6. Step 6: Final answer
    x = 389,466.08

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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.