Home / 777,748.80-1,073,293.44-420,052.80

Finding the Fourth Proportional to 777,748.80, 1,073,293.44 and 420,052.80

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Solution

The fourth proportional to 777,748.80, 1,073,293.44 and 420,052.80 is: 579,672.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,748.80 : 1,073,293.44 = 420,052.80 : x
  2. Step 2: Convert to fraction form
    777,748.80/1,073,293.44 = 420,052.80/x
  3. Step 3: Cross multiply
    777,748.80x = 1,073,293.44 × 420,052.80
  4. Step 4: Simplify right side
    777,748.80x = 450,839,914,693.63
  5. Step 5: Solve for x
    x = 450,839,914,693.63/777,748.80
  6. Step 6: Final answer
    x = 579,672.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.