Home / 644,106.31-888,849.79-357,619.03

Finding the Fourth Proportional to 644,106.31, 888,849.79 and 357,619.03

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Solution

The fourth proportional to 644,106.31, 888,849.79 and 357,619.03 is: 493,504.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,106.31 : 888,849.79 = 357,619.03 : x
  2. Step 2: Convert to fraction form
    644,106.31/888,849.79 = 357,619.03/x
  3. Step 3: Cross multiply
    644,106.31x = 888,849.79 × 357,619.03
  4. Step 4: Simplify right side
    644,106.31x = 317,869,599,715.50
  5. Step 5: Solve for x
    x = 317,869,599,715.50/644,106.31
  6. Step 6: Final answer
    x = 493,504.87

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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.