Home / 830,096.40-1,245,144.60-269,130.90

Finding the Fourth Proportional to 830,096.40, 1,245,144.60 and 269,130.90

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Solution

The fourth proportional to 830,096.40, 1,245,144.60 and 269,130.90 is: 403,696.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,096.40 : 1,245,144.60 = 269,130.90 : x
  2. Step 2: Convert to fraction form
    830,096.40/1,245,144.60 = 269,130.90/x
  3. Step 3: Cross multiply
    830,096.40x = 1,245,144.60 × 269,130.90
  4. Step 4: Simplify right side
    830,096.40x = 335,106,886,828.14
  5. Step 5: Solve for x
    x = 335,106,886,828.14/830,096.40
  6. Step 6: Final answer
    x = 403,696.35

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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.