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Finding the Fourth Proportional to 560,346.88, 773,275.03 and 318,629.47

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Solution

The fourth proportional to 560,346.88, 773,275.03 and 318,629.47 is: 439,706.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,346.88 : 773,275.03 = 318,629.47 : x
  2. Step 2: Convert to fraction form
    560,346.88/773,275.03 = 318,629.47/x
  3. Step 3: Cross multiply
    560,346.88x = 773,275.03 × 318,629.47
  4. Step 4: Simplify right side
    560,346.88x = 246,388,210,243.37
  5. Step 5: Solve for x
    x = 246,388,210,243.37/560,346.88
  6. Step 6: Final answer
    x = 439,706.58

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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.