Home / 739,206.09-1,109,231.96-289,967.13

Finding the Fourth Proportional to 739,206.09, 1,109,231.96 and 289,967.13

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Solution

The fourth proportional to 739,206.09, 1,109,231.96 and 289,967.13 is: 435,116.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,206.09 : 1,109,231.96 = 289,967.13 : x
  2. Step 2: Convert to fraction form
    739,206.09/1,109,231.96 = 289,967.13/x
  3. Step 3: Cross multiply
    739,206.09x = 1,109,231.96 × 289,967.13
  4. Step 4: Simplify right side
    739,206.09x = 321,640,806,495.64
  5. Step 5: Solve for x
    x = 321,640,806,495.64/739,206.09
  6. Step 6: Final answer
    x = 435,116.55

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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.