Home / 931,499.03-1,397,248.54-300,412.84

Finding the Fourth Proportional to 931,499.03, 1,397,248.54 and 300,412.84

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Solution

The fourth proportional to 931,499.03, 1,397,248.54 and 300,412.84 is: 450,619.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,499.03 : 1,397,248.54 = 300,412.84 : x
  2. Step 2: Convert to fraction form
    931,499.03/1,397,248.54 = 300,412.84/x
  3. Step 3: Cross multiply
    931,499.03x = 1,397,248.54 × 300,412.84
  4. Step 4: Simplify right side
    931,499.03x = 419,751,395,101.01
  5. Step 5: Solve for x
    x = 419,751,395,101.01/931,499.03
  6. Step 6: Final answer
    x = 450,619.25

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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.