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Finding the Fourth Proportional to 560,477.90, 773,478.17 and 305,843.06

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Solution

The fourth proportional to 560,477.90, 773,478.17 and 305,843.06 is: 422,073.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,477.90 : 773,478.17 = 305,843.06 : x
  2. Step 2: Convert to fraction form
    560,477.90/773,478.17 = 305,843.06/x
  3. Step 3: Cross multiply
    560,477.90x = 773,478.17 × 305,843.06
  4. Step 4: Simplify right side
    560,477.90x = 236,562,924,959.39
  5. Step 5: Solve for x
    x = 236,562,924,959.39/560,477.90
  6. Step 6: Final answer
    x = 422,073.60

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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.