Home / 849,327.20-1,273,990.80-309,623.96

Finding the Fourth Proportional to 849,327.20, 1,273,990.80 and 309,623.96

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Solution

The fourth proportional to 849,327.20, 1,273,990.80 and 309,623.96 is: 464,435.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,327.20 : 1,273,990.80 = 309,623.96 : x
  2. Step 2: Convert to fraction form
    849,327.20/1,273,990.80 = 309,623.96/x
  3. Step 3: Cross multiply
    849,327.20x = 1,273,990.80 × 309,623.96
  4. Step 4: Simplify right side
    849,327.20x = 394,458,076,499.57
  5. Step 5: Solve for x
    x = 394,458,076,499.57/849,327.20
  6. Step 6: Final answer
    x = 464,435.94

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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.