Home / 809,455.80-1,213,972.20-240,683.76

Finding the Fourth Proportional to 809,455.80, 1,213,972.20 and 240,683.76

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Solution

The fourth proportional to 809,455.80, 1,213,972.20 and 240,683.76 is: 360,962.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,455.80 : 1,213,972.20 = 240,683.76 : x
  2. Step 2: Convert to fraction form
    809,455.80/1,213,972.20 = 240,683.76/x
  3. Step 3: Cross multiply
    809,455.80x = 1,213,972.20 × 240,683.76
  4. Step 4: Simplify right side
    809,455.80x = 292,183,393,631.47
  5. Step 5: Solve for x
    x = 292,183,393,631.47/809,455.80
  6. Step 6: Final answer
    x = 360,962.75

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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.