Home / 448,756.20-619,297.38-257,807.88

Finding the Fourth Proportional to 448,756.20, 619,297.38 and 257,807.88

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Solution

The fourth proportional to 448,756.20, 619,297.38 and 257,807.88 is: 355,782.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,756.20 : 619,297.38 = 257,807.88 : x
  2. Step 2: Convert to fraction form
    448,756.20/619,297.38 = 257,807.88/x
  3. Step 3: Cross multiply
    448,756.20x = 619,297.38 × 257,807.88
  4. Step 4: Simplify right side
    448,756.20x = 159,659,744,627.35
  5. Step 5: Solve for x
    x = 159,659,744,627.35/448,756.20
  6. Step 6: Final answer
    x = 355,782.82

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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.