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Finding the Fourth Proportional to 448,444.88, 618,504.01 and 287,315.02

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Solution

The fourth proportional to 448,444.88, 618,504.01 and 287,315.02 is: 396,270.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,444.88 : 618,504.01 = 287,315.02 : x
  2. Step 2: Convert to fraction form
    448,444.88/618,504.01 = 287,315.02/x
  3. Step 3: Cross multiply
    448,444.88x = 618,504.01 × 287,315.02
  4. Step 4: Simplify right side
    448,444.88x = 177,705,492,003.23
  5. Step 5: Solve for x
    x = 177,705,492,003.23/448,444.88
  6. Step 6: Final answer
    x = 396,270.53

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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.