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Finding the Fourth Proportional to 474,544.48, 654,826.80 and 321,270.88

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Solution

The fourth proportional to 474,544.48, 654,826.80 and 321,270.88 is: 443,323.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,544.48 : 654,826.80 = 321,270.88 : x
  2. Step 2: Convert to fraction form
    474,544.48/654,826.80 = 321,270.88/x
  3. Step 3: Cross multiply
    474,544.48x = 654,826.80 × 321,270.88
  4. Step 4: Simplify right side
    474,544.48x = 210,376,782,283.58
  5. Step 5: Solve for x
    x = 210,376,782,283.58/474,544.48
  6. Step 6: Final answer
    x = 443,323.63

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1.5x scale

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.