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Finding the Fourth Proportional to 448,482.17, 618,750.14 and 287,426.02

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Solution

The fourth proportional to 448,482.17, 618,750.14 and 287,426.02 is: 396,548.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,482.17 : 618,750.14 = 287,426.02 : x
  2. Step 2: Convert to fraction form
    448,482.17/618,750.14 = 287,426.02/x
  3. Step 3: Cross multiply
    448,482.17x = 618,750.14 × 287,426.02
  4. Step 4: Simplify right side
    448,482.17x = 177,844,889,907.57
  5. Step 5: Solve for x
    x = 177,844,889,907.57/448,482.17
  6. Step 6: Final answer
    x = 396,548.41

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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.