Home / 986,200.55-1,479,300.83-512,824.40

Finding the Fourth Proportional to 986,200.55, 1,479,300.83 and 512,824.40

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Solution

The fourth proportional to 986,200.55, 1,479,300.83 and 512,824.40 is: 769,236.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,200.55 : 1,479,300.83 = 512,824.40 : x
  2. Step 2: Convert to fraction form
    986,200.55/1,479,300.83 = 512,824.40/x
  3. Step 3: Cross multiply
    986,200.55x = 1,479,300.83 × 512,824.40
  4. Step 4: Simplify right side
    986,200.55x = 758,621,558,000.13
  5. Step 5: Solve for x
    x = 758,621,558,000.13/986,200.55
  6. Step 6: Final answer
    x = 769,236.60

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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.