Home / 454,231.20-681,346.80-318,928.80

Finding the Fourth Proportional to 454,231.20, 681,346.80 and 318,928.80

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Solution

The fourth proportional to 454,231.20, 681,346.80 and 318,928.80 is: 478,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,231.20 : 681,346.80 = 318,928.80 : x
  2. Step 2: Convert to fraction form
    454,231.20/681,346.80 = 318,928.80/x
  3. Step 3: Cross multiply
    454,231.20x = 681,346.80 × 318,928.80
  4. Step 4: Simplify right side
    454,231.20x = 217,301,117,307.84
  5. Step 5: Solve for x
    x = 217,301,117,307.84/454,231.20
  6. Step 6: Final answer
    x = 478,393.20

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Similar ratio
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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.