Home / 780,279.13-1,170,418.69-189,303.13

Finding the Fourth Proportional to 780,279.13, 1,170,418.69 and 189,303.13

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Solution

The fourth proportional to 780,279.13, 1,170,418.69 and 189,303.13 is: 283,954.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,279.13 : 1,170,418.69 = 189,303.13 : x
  2. Step 2: Convert to fraction form
    780,279.13/1,170,418.69 = 189,303.13/x
  3. Step 3: Cross multiply
    780,279.13x = 1,170,418.69 × 189,303.13
  4. Step 4: Simplify right side
    780,279.13x = 221,563,921,427.50
  5. Step 5: Solve for x
    x = 221,563,921,427.50/780,279.13
  6. Step 6: Final answer
    x = 283,954.69

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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.