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Finding the Fourth Proportional to 560,964.81, 774,029.46 and 331,560.66

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Solution

The fourth proportional to 560,964.81, 774,029.46 and 331,560.66 is: 457,493.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,964.81 : 774,029.46 = 331,560.66 : x
  2. Step 2: Convert to fraction form
    560,964.81/774,029.46 = 331,560.66/x
  3. Step 3: Cross multiply
    560,964.81x = 774,029.46 × 331,560.66
  4. Step 4: Simplify right side
    560,964.81x = 256,637,718,617.04
  5. Step 5: Solve for x
    x = 256,637,718,617.04/560,964.81
  6. Step 6: Final answer
    x = 457,493.44

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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.