Home / 644,252.58-889,079.25-353,890.98

Finding the Fourth Proportional to 644,252.58, 889,079.25 and 353,890.98

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Solution

The fourth proportional to 644,252.58, 889,079.25 and 353,890.98 is: 488,375.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,252.58 : 889,079.25 = 353,890.98 : x
  2. Step 2: Convert to fraction form
    644,252.58/889,079.25 = 353,890.98/x
  3. Step 3: Cross multiply
    644,252.58x = 889,079.25 × 353,890.98
  4. Step 4: Simplify right side
    644,252.58x = 314,637,127,080.17
  5. Step 5: Solve for x
    x = 314,637,127,080.17/644,252.58
  6. Step 6: Final answer
    x = 488,375.42

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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.