Home / 644,267.44-889,099.80-353,905.93

Finding the Fourth Proportional to 644,267.44, 889,099.80 and 353,905.93

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Solution

The fourth proportional to 644,267.44, 889,099.80 and 353,905.93 is: 488,396.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,267.44 : 889,099.80 = 353,905.93 : x
  2. Step 2: Convert to fraction form
    644,267.44/889,099.80 = 353,905.93/x
  3. Step 3: Cross multiply
    644,267.44x = 889,099.80 × 353,905.93
  4. Step 4: Simplify right side
    644,267.44x = 314,657,691,581.81
  5. Step 5: Solve for x
    x = 314,657,691,581.81/644,267.44
  6. Step 6: Final answer
    x = 488,396.08

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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.