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Finding the Fourth Proportional to 543,028.30, 749,367.60 and 301,305.67

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Solution

The fourth proportional to 543,028.30, 749,367.60 and 301,305.67 is: 415,795.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,028.30 : 749,367.60 = 301,305.67 : x
  2. Step 2: Convert to fraction form
    543,028.30/749,367.60 = 301,305.67/x
  3. Step 3: Cross multiply
    543,028.30x = 749,367.60 × 301,305.67
  4. Step 4: Simplify right side
    543,028.30x = 225,788,706,794.29
  5. Step 5: Solve for x
    x = 225,788,706,794.29/543,028.30
  6. Step 6: Final answer
    x = 415,795.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.