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Finding the Fourth Proportional to 512,030.40, 768,045.60 and 362,439.60

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Solution

The fourth proportional to 512,030.40, 768,045.60 and 362,439.60 is: 543,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,030.40 : 768,045.60 = 362,439.60 : x
  2. Step 2: Convert to fraction form
    512,030.40/768,045.60 = 362,439.60/x
  3. Step 3: Cross multiply
    512,030.40x = 768,045.60 × 362,439.60
  4. Step 4: Simplify right side
    512,030.40x = 278,370,140,045.76
  5. Step 5: Solve for x
    x = 278,370,140,045.76/512,030.40
  6. Step 6: Final answer
    x = 543,659.40

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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.