Home / 928,136.89-1,391,811.67-329,248.81

Finding the Fourth Proportional to 928,136.89, 1,391,811.67 and 329,248.81

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Solution

The fourth proportional to 928,136.89, 1,391,811.67 and 329,248.81 is: 493,733.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,136.89 : 1,391,811.67 = 329,248.81 : x
  2. Step 2: Convert to fraction form
    928,136.89/1,391,811.67 = 329,248.81/x
  3. Step 3: Cross multiply
    928,136.89x = 1,391,811.67 × 329,248.81
  4. Step 4: Simplify right side
    928,136.89x = 458,252,336,091.61
  5. Step 5: Solve for x
    x = 458,252,336,091.61/928,136.89
  6. Step 6: Final answer
    x = 493,733.57

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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.