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Finding the Fourth Proportional to 556,650.63, 768,180.51 and 302,001.75

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Solution

The fourth proportional to 556,650.63, 768,180.51 and 302,001.75 is: 416,763.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,650.63 : 768,180.51 = 302,001.75 : x
  2. Step 2: Convert to fraction form
    556,650.63/768,180.51 = 302,001.75/x
  3. Step 3: Cross multiply
    556,650.63x = 768,180.51 × 302,001.75
  4. Step 4: Simplify right side
    556,650.63x = 231,991,858,335.89
  5. Step 5: Solve for x
    x = 231,991,858,335.89/556,650.63
  6. Step 6: Final answer
    x = 416,763.85

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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.