Home / 809,411.70-1,214,117.55-248,373.30

Finding the Fourth Proportional to 809,411.70, 1,214,117.55 and 248,373.30

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Solution

The fourth proportional to 809,411.70, 1,214,117.55 and 248,373.30 is: 372,559.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,411.70 : 1,214,117.55 = 248,373.30 : x
  2. Step 2: Convert to fraction form
    809,411.70/1,214,117.55 = 248,373.30/x
  3. Step 3: Cross multiply
    809,411.70x = 1,214,117.55 × 248,373.30
  4. Step 4: Simplify right side
    809,411.70x = 301,554,382,481.42
  5. Step 5: Solve for x
    x = 301,554,382,481.42/809,411.70
  6. Step 6: Final answer
    x = 372,559.95

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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.