Home / 724,659.20-1,086,988.80-512,082.80

Finding the Fourth Proportional to 724,659.20, 1,086,988.80 and 512,082.80

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Solution

The fourth proportional to 724,659.20, 1,086,988.80 and 512,082.80 is: 768,124.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,659.20 : 1,086,988.80 = 512,082.80 : x
  2. Step 2: Convert to fraction form
    724,659.20/1,086,988.80 = 512,082.80/x
  3. Step 3: Cross multiply
    724,659.20x = 1,086,988.80 × 512,082.80
  4. Step 4: Simplify right side
    724,659.20x = 556,628,268,272.64
  5. Step 5: Solve for x
    x = 556,628,268,272.64/724,659.20
  6. Step 6: Final answer
    x = 768,124.20

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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.