Home / 719,181.80-1,079,387.10-320,436.20

Finding the Fourth Proportional to 719,181.80, 1,079,387.10 and 320,436.20

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Solution

The fourth proportional to 719,181.80, 1,079,387.10 and 320,436.20 is: 480,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,181.80 : 1,079,387.10 = 320,436.20 : x
  2. Step 2: Convert to fraction form
    719,181.80/1,079,387.10 = 320,436.20/x
  3. Step 3: Cross multiply
    719,181.80x = 1,079,387.10 × 320,436.20
  4. Step 4: Simplify right side
    719,181.80x = 345,874,700,653.02
  5. Step 5: Solve for x
    x = 345,874,700,653.02/719,181.80
  6. Step 6: Final answer
    x = 480,928.05

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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.