Home / 724,619.40-1,086,540.30-303,419.40

Finding the Fourth Proportional to 724,619.40, 1,086,540.30 and 303,419.40

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Solution

The fourth proportional to 724,619.40, 1,086,540.30 and 303,419.40 is: 454,966.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,619.40 : 1,086,540.30 = 303,419.40 : x
  2. Step 2: Convert to fraction form
    724,619.40/1,086,540.30 = 303,419.40/x
  3. Step 3: Cross multiply
    724,619.40x = 1,086,540.30 × 303,419.40
  4. Step 4: Simplify right side
    724,619.40x = 329,677,405,901.82
  5. Step 5: Solve for x
    x = 329,677,405,901.82/724,619.40
  6. Step 6: Final answer
    x = 454,966.30

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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.