Home / 739,971.07-1,109,507.14-290,153.05

Finding the Fourth Proportional to 739,971.07, 1,109,507.14 and 290,153.05

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Solution

The fourth proportional to 739,971.07, 1,109,507.14 and 290,153.05 is: 435,053.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,971.07 : 1,109,507.14 = 290,153.05 : x
  2. Step 2: Convert to fraction form
    739,971.07/1,109,507.14 = 290,153.05/x
  3. Step 3: Cross multiply
    739,971.07x = 1,109,507.14 × 290,153.05
  4. Step 4: Simplify right side
    739,971.07x = 321,926,880,667.78
  5. Step 5: Solve for x
    x = 321,926,880,667.78/739,971.07
  6. Step 6: Final answer
    x = 435,053.33

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Double scale
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Similar ratio
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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.