Home / 753,727.20-1,129,381.20-398,277.60

Finding the Fourth Proportional to 753,727.20, 1,129,381.20 and 398,277.60

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Solution

The fourth proportional to 753,727.20, 1,129,381.20 and 398,277.60 is: 596,777.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,727.20 : 1,129,381.20 = 398,277.60 : x
  2. Step 2: Convert to fraction form
    753,727.20/1,129,381.20 = 398,277.60/x
  3. Step 3: Cross multiply
    753,727.20x = 1,129,381.20 × 398,277.60
  4. Step 4: Simplify right side
    753,727.20x = 449,807,233,821.12
  5. Step 5: Solve for x
    x = 449,807,233,821.12/753,727.20
  6. Step 6: Final answer
    x = 596,777.23

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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.