Home / 644,172.14-889,039.56-389,525.16

Finding the Fourth Proportional to 644,172.14, 889,039.56 and 389,525.16

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Solution

The fourth proportional to 644,172.14, 889,039.56 and 389,525.16 is: 537,594.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,172.14 : 889,039.56 = 389,525.16 : x
  2. Step 2: Convert to fraction form
    644,172.14/889,039.56 = 389,525.16/x
  3. Step 3: Cross multiply
    644,172.14x = 889,039.56 × 389,525.16
  4. Step 4: Simplify right side
    644,172.14x = 346,303,276,855.33
  5. Step 5: Solve for x
    x = 346,303,276,855.33/644,172.14
  6. Step 6: Final answer
    x = 537,594.31

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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.