Home / 448,579.20-619,053.12-257,630.88

Finding the Fourth Proportional to 448,579.20, 619,053.12 and 257,630.88

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Solution

The fourth proportional to 448,579.20, 619,053.12 and 257,630.88 is: 355,538.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,579.20 : 619,053.12 = 257,630.88 : x
  2. Step 2: Convert to fraction form
    448,579.20/619,053.12 = 257,630.88/x
  3. Step 3: Cross multiply
    448,579.20x = 619,053.12 × 257,630.88
  4. Step 4: Simplify right side
    448,579.20x = 159,487,200,072.35
  5. Step 5: Solve for x
    x = 159,487,200,072.35/448,579.20
  6. Step 6: Final answer
    x = 355,538.55

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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.