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Finding the Fourth Proportional to 412,519.07, 618,779.13 and 113,002.28

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Solution

The fourth proportional to 412,519.07, 618,779.13 and 113,002.28 is: 169,503.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,519.07 : 618,779.13 = 113,002.28 : x
  2. Step 2: Convert to fraction form
    412,519.07/618,779.13 = 113,002.28/x
  3. Step 3: Cross multiply
    412,519.07x = 618,779.13 × 113,002.28
  4. Step 4: Simplify right side
    412,519.07x = 69,923,452,506.42
  5. Step 5: Solve for x
    x = 69,923,452,506.42/412,519.07
  6. Step 6: Final answer
    x = 169,503.56

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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.