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Finding the Fourth Proportional to 490,044.78, 738,703.19 and 447,477.66

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Solution

The fourth proportional to 490,044.78, 738,703.19 and 447,477.66 is: 674,536.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,044.78 : 738,703.19 = 447,477.66 : x
  2. Step 2: Convert to fraction form
    490,044.78/738,703.19 = 447,477.66/x
  3. Step 3: Cross multiply
    490,044.78x = 738,703.19 × 447,477.66
  4. Step 4: Simplify right side
    490,044.78x = 330,553,176,014.43
  5. Step 5: Solve for x
    x = 330,553,176,014.43/490,044.78
  6. Step 6: Final answer
    x = 674,536.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.