Home / 451,486.43-677,342.39-318,626.18

Finding the Fourth Proportional to 451,486.43, 677,342.39 and 318,626.18

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Solution

The fourth proportional to 451,486.43, 677,342.39 and 318,626.18 is: 478,018.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,486.43 : 677,342.39 = 318,626.18 : x
  2. Step 2: Convert to fraction form
    451,486.43/677,342.39 = 318,626.18/x
  3. Step 3: Cross multiply
    451,486.43x = 677,342.39 × 318,626.18
  4. Step 4: Simplify right side
    451,486.43x = 215,819,018,526.37
  5. Step 5: Solve for x
    x = 215,819,018,526.37/451,486.43
  6. Step 6: Final answer
    x = 478,018.84

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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.