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Finding the Fourth Proportional to 448,339.27, 618,685.62 and 254,721.64

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Solution

The fourth proportional to 448,339.27, 618,685.62 and 254,721.64 is: 351,503.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,339.27 : 618,685.62 = 254,721.64 : x
  2. Step 2: Convert to fraction form
    448,339.27/618,685.62 = 254,721.64/x
  3. Step 3: Cross multiply
    448,339.27x = 618,685.62 × 254,721.64
  4. Step 4: Simplify right side
    448,339.27x = 157,592,615,770.82
  5. Step 5: Solve for x
    x = 157,592,615,770.82/448,339.27
  6. Step 6: Final answer
    x = 351,503.04

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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.