Home / 785,987.51-1,179,210.89-253,496.75

Finding the Fourth Proportional to 785,987.51, 1,179,210.89 and 253,496.75

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Solution

The fourth proportional to 785,987.51, 1,179,210.89 and 253,496.75 is: 380,319.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,987.51 : 1,179,210.89 = 253,496.75 : x
  2. Step 2: Convert to fraction form
    785,987.51/1,179,210.89 = 253,496.75/x
  3. Step 3: Cross multiply
    785,987.51x = 1,179,210.89 × 253,496.75
  4. Step 4: Simplify right side
    785,987.51x = 298,926,122,917.30
  5. Step 5: Solve for x
    x = 298,926,122,917.30/785,987.51
  6. Step 6: Final answer
    x = 380,319.18

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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.