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Finding the Fourth Proportional to 412,889.40, 619,352.10 and 113,362.20

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Solution

The fourth proportional to 412,889.40, 619,352.10 and 113,362.20 is: 170,048.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,889.40 : 619,352.10 = 113,362.20 : x
  2. Step 2: Convert to fraction form
    412,889.40/619,352.10 = 113,362.20/x
  3. Step 3: Cross multiply
    412,889.40x = 619,352.10 × 113,362.20
  4. Step 4: Simplify right side
    412,889.40x = 70,211,116,630.62
  5. Step 5: Solve for x
    x = 70,211,116,630.62/412,889.40
  6. Step 6: Final answer
    x = 170,048.24

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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.