Home / 644,288.82-889,094.20-357,827.36

Finding the Fourth Proportional to 644,288.82, 889,094.20 and 357,827.36

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Solution

The fourth proportional to 644,288.82, 889,094.20 and 357,827.36 is: 493,788.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,288.82 : 889,094.20 = 357,827.36 : x
  2. Step 2: Convert to fraction form
    644,288.82/889,094.20 = 357,827.36/x
  3. Step 3: Cross multiply
    644,288.82x = 889,094.20 × 357,827.36
  4. Step 4: Simplify right side
    644,288.82x = 318,142,230,377.31
  5. Step 5: Solve for x
    x = 318,142,230,377.31/644,288.82
  6. Step 6: Final answer
    x = 493,788.22

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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.