Home / 775,628.40-1,163,442.60-214,662.90

Finding the Fourth Proportional to 775,628.40, 1,163,442.60 and 214,662.90

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Solution

The fourth proportional to 775,628.40, 1,163,442.60 and 214,662.90 is: 321,994.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,628.40 : 1,163,442.60 = 214,662.90 : x
  2. Step 2: Convert to fraction form
    775,628.40/1,163,442.60 = 214,662.90/x
  3. Step 3: Cross multiply
    775,628.40x = 1,163,442.60 × 214,662.90
  4. Step 4: Simplify right side
    775,628.40x = 249,747,962,499.54
  5. Step 5: Solve for x
    x = 249,747,962,499.54/775,628.40
  6. Step 6: Final answer
    x = 321,994.35

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Double scale
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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.