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Finding the Fourth Proportional to 448,958.08, 619,476.42 and 257,979.52

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Solution

The fourth proportional to 448,958.08, 619,476.42 and 257,979.52 is: 355,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,958.08 : 619,476.42 = 257,979.52 : x
  2. Step 2: Convert to fraction form
    448,958.08/619,476.42 = 257,979.52/x
  3. Step 3: Cross multiply
    448,958.08x = 619,476.42 × 257,979.52
  4. Step 4: Simplify right side
    448,958.08x = 159,812,229,482.92
  5. Step 5: Solve for x
    x = 159,812,229,482.92/448,958.08
  6. Step 6: Final answer
    x = 355,962.48

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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.