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Finding the Fourth Proportional to 560,203.20, 773,145.80 and 318,522

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Solution

The fourth proportional to 560,203.20, 773,145.80 and 318,522 is: 439,597.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,203.20 : 773,145.80 = 318,522 : x
  2. Step 2: Convert to fraction form
    560,203.20/773,145.80 = 318,522/x
  3. Step 3: Cross multiply
    560,203.20x = 773,145.80 × 318,522
  4. Step 4: Simplify right side
    560,203.20x = 246,263,946,507.60
  5. Step 5: Solve for x
    x = 246,263,946,507.60/560,203.20
  6. Step 6: Final answer
    x = 439,597.54

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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.