Home / 780,054.80-1,170,082.20-543,664.40

Finding the Fourth Proportional to 780,054.80, 1,170,082.20 and 543,664.40

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Solution

The fourth proportional to 780,054.80, 1,170,082.20 and 543,664.40 is: 815,496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,054.80 : 1,170,082.20 = 543,664.40 : x
  2. Step 2: Convert to fraction form
    780,054.80/1,170,082.20 = 543,664.40/x
  3. Step 3: Cross multiply
    780,054.80x = 1,170,082.20 × 543,664.40
  4. Step 4: Simplify right side
    780,054.80x = 636,132,037,213.68
  5. Step 5: Solve for x
    x = 636,132,037,213.68/780,054.80
  6. Step 6: Final answer
    x = 815,496.60

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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.