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Finding the Fourth Proportional to 436,099.20, 609,139.20 and 436,099.20

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Solution

The fourth proportional to 436,099.20, 609,139.20 and 436,099.20 is: 609,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,099.20 : 609,139.20 = 436,099.20 : x
  2. Step 2: Convert to fraction form
    436,099.20/609,139.20 = 436,099.20/x
  3. Step 3: Cross multiply
    436,099.20x = 609,139.20 × 436,099.20
  4. Step 4: Simplify right side
    436,099.20x = 265,645,117,808.64
  5. Step 5: Solve for x
    x = 265,645,117,808.64/436,099.20
  6. Step 6: Final answer
    x = 609,139.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.