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Finding the Fourth Proportional to 528,601.42, 792,895.03 and 129,245.63

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Solution

The fourth proportional to 528,601.42, 792,895.03 and 129,245.63 is: 193,866.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,601.42 : 792,895.03 = 129,245.63 : x
  2. Step 2: Convert to fraction form
    528,601.42/792,895.03 = 129,245.63/x
  3. Step 3: Cross multiply
    528,601.42x = 792,895.03 × 129,245.63
  4. Step 4: Simplify right side
    528,601.42x = 102,478,217,676.22
  5. Step 5: Solve for x
    x = 102,478,217,676.22/528,601.42
  6. Step 6: Final answer
    x = 193,866.71

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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.