Home / 644,105.56-888,848.76-357,618.28

Finding the Fourth Proportional to 644,105.56, 888,848.76 and 357,618.28

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Solution

The fourth proportional to 644,105.56, 888,848.76 and 357,618.28 is: 493,503.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,105.56 : 888,848.76 = 357,618.28 : x
  2. Step 2: Convert to fraction form
    644,105.56/888,848.76 = 357,618.28/x
  3. Step 3: Cross multiply
    644,105.56x = 888,848.76 × 357,618.28
  4. Step 4: Simplify right side
    644,105.56x = 317,868,564,731.33
  5. Step 5: Solve for x
    x = 317,868,564,731.33/644,105.56
  6. Step 6: Final answer
    x = 493,503.84

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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.