Home / 387,625.49-581,438.24-121,406.84

Finding the Fourth Proportional to 387,625.49, 581,438.24 and 121,406.84

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Solution

The fourth proportional to 387,625.49, 581,438.24 and 121,406.84 is: 182,110.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,625.49 : 581,438.24 = 121,406.84 : x
  2. Step 2: Convert to fraction form
    387,625.49/581,438.24 = 121,406.84/x
  3. Step 3: Cross multiply
    387,625.49x = 581,438.24 × 121,406.84
  4. Step 4: Simplify right side
    387,625.49x = 70,590,579,373.56
  5. Step 5: Solve for x
    x = 70,590,579,373.56/387,625.49
  6. Step 6: Final answer
    x = 182,110.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.