Home / 869,113.40-1,303,767.30-270,069.80

Finding the Fourth Proportional to 869,113.40, 1,303,767.30 and 270,069.80

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Solution

The fourth proportional to 869,113.40, 1,303,767.30 and 270,069.80 is: 405,134.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,113.40 : 1,303,767.30 = 270,069.80 : x
  2. Step 2: Convert to fraction form
    869,113.40/1,303,767.30 = 270,069.80/x
  3. Step 3: Cross multiply
    869,113.40x = 1,303,767.30 × 270,069.80
  4. Step 4: Simplify right side
    869,113.40x = 352,108,173,957.54
  5. Step 5: Solve for x
    x = 352,108,173,957.54/869,113.40
  6. Step 6: Final answer
    x = 405,134.90

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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.