Home / 830,821.60-1,246,232.40-269,912.80

Finding the Fourth Proportional to 830,821.60, 1,246,232.40 and 269,912.80

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Solution

The fourth proportional to 830,821.60, 1,246,232.40 and 269,912.80 is: 404,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,821.60 : 1,246,232.40 = 269,912.80 : x
  2. Step 2: Convert to fraction form
    830,821.60/1,246,232.40 = 269,912.80/x
  3. Step 3: Cross multiply
    830,821.60x = 1,246,232.40 × 269,912.80
  4. Step 4: Simplify right side
    830,821.60x = 336,374,076,534.72
  5. Step 5: Solve for x
    x = 336,374,076,534.72/830,821.60
  6. Step 6: Final answer
    x = 404,869.20

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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.