Home / 724,835.40-1,086,864.30-303,635.40

Finding the Fourth Proportional to 724,835.40, 1,086,864.30 and 303,635.40

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Solution

The fourth proportional to 724,835.40, 1,086,864.30 and 303,635.40 is: 455,290.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,835.40 : 1,086,864.30 = 303,635.40 : x
  2. Step 2: Convert to fraction form
    724,835.40/1,086,864.30 = 303,635.40/x
  3. Step 3: Cross multiply
    724,835.40x = 1,086,864.30 × 303,635.40
  4. Step 4: Simplify right side
    724,835.40x = 330,010,476,476.22
  5. Step 5: Solve for x
    x = 330,010,476,476.22/724,835.40
  6. Step 6: Final answer
    x = 455,290.23

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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.