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Finding the Fourth Proportional to 463,959.63, 640,072.94 and 302,756.67

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Solution

The fourth proportional to 463,959.63, 640,072.94 and 302,756.67 is: 417,679.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,959.63 : 640,072.94 = 302,756.67 : x
  2. Step 2: Convert to fraction form
    463,959.63/640,072.94 = 302,756.67/x
  3. Step 3: Cross multiply
    463,959.63x = 640,072.94 × 302,756.67
  4. Step 4: Simplify right side
    463,959.63x = 193,786,350,357.73
  5. Step 5: Solve for x
    x = 193,786,350,357.73/463,959.63
  6. Step 6: Final answer
    x = 417,679.34

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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.