Home / 448,835.56-619,617.54-279,124.36

Finding the Fourth Proportional to 448,835.56, 619,617.54 and 279,124.36

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Solution

The fourth proportional to 448,835.56, 619,617.54 and 279,124.36 is: 385,331.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,835.56 : 619,617.54 = 279,124.36 : x
  2. Step 2: Convert to fraction form
    448,835.56/619,617.54 = 279,124.36/x
  3. Step 3: Cross multiply
    448,835.56x = 619,617.54 × 279,124.36
  4. Step 4: Simplify right side
    448,835.56x = 172,950,349,297.27
  5. Step 5: Solve for x
    x = 172,950,349,297.27/448,835.56
  6. Step 6: Final answer
    x = 385,331.21

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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.