Home / 448,828.56-619,607.88-279,117.36

Finding the Fourth Proportional to 448,828.56, 619,607.88 and 279,117.36

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Solution

The fourth proportional to 448,828.56, 619,607.88 and 279,117.36 is: 385,321.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,828.56 : 619,607.88 = 279,117.36 : x
  2. Step 2: Convert to fraction form
    448,828.56/619,607.88 = 279,117.36/x
  3. Step 3: Cross multiply
    448,828.56x = 619,607.88 × 279,117.36
  4. Step 4: Simplify right side
    448,828.56x = 172,943,315,700.80
  5. Step 5: Solve for x
    x = 172,943,315,700.80/448,828.56
  6. Step 6: Final answer
    x = 385,321.55

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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.