Home / 724,830.40-1,086,856.80-303,630.40

Finding the Fourth Proportional to 724,830.40, 1,086,856.80 and 303,630.40

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Solution

The fourth proportional to 724,830.40, 1,086,856.80 and 303,630.40 is: 455,282.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,830.40 : 1,086,856.80 = 303,630.40 : x
  2. Step 2: Convert to fraction form
    724,830.40/1,086,856.80 = 303,630.40/x
  3. Step 3: Cross multiply
    724,830.40x = 1,086,856.80 × 303,630.40
  4. Step 4: Simplify right side
    724,830.40x = 330,002,764,926.72
  5. Step 5: Solve for x
    x = 330,002,764,926.72/724,830.40
  6. Step 6: Final answer
    x = 455,282.73

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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.