Home / 724,134.40-1,086,590.40-303,452.80

Finding the Fourth Proportional to 724,134.40, 1,086,590.40 and 303,452.80

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Solution

The fourth proportional to 724,134.40, 1,086,590.40 and 303,452.80 is: 455,342.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,134.40 : 1,086,590.40 = 303,452.80 : x
  2. Step 2: Convert to fraction form
    724,134.40/1,086,590.40 = 303,452.80/x
  3. Step 3: Cross multiply
    724,134.40x = 1,086,590.40 × 303,452.80
  4. Step 4: Simplify right side
    724,134.40x = 329,728,899,333.12
  5. Step 5: Solve for x
    x = 329,728,899,333.12/724,134.40
  6. Step 6: Final answer
    x = 455,342.13

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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.