Home / 644,521.76-889,546.56-536,921.36

Finding the Fourth Proportional to 644,521.76, 889,546.56 and 536,921.36

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Solution

The fourth proportional to 644,521.76, 889,546.56 and 536,921.36 is: 741,040.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,521.76 : 889,546.56 = 536,921.36 : x
  2. Step 2: Convert to fraction form
    644,521.76/889,546.56 = 536,921.36/x
  3. Step 3: Cross multiply
    644,521.76x = 889,546.56 × 536,921.36
  4. Step 4: Simplify right side
    644,521.76x = 477,616,548,778.52
  5. Step 5: Solve for x
    x = 477,616,548,778.52/644,521.76
  6. Step 6: Final answer
    x = 741,040.22

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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.