Home / 483,530.10-725,291.37-128,569.20

Finding the Fourth Proportional to 483,530.10, 725,291.37 and 128,569.20

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Solution

The fourth proportional to 483,530.10, 725,291.37 and 128,569.20 is: 192,852.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,530.10 : 725,291.37 = 128,569.20 : x
  2. Step 2: Convert to fraction form
    483,530.10/725,291.37 = 128,569.20/x
  3. Step 3: Cross multiply
    483,530.10x = 725,291.37 × 128,569.20
  4. Step 4: Simplify right side
    483,530.10x = 93,250,131,207.80
  5. Step 5: Solve for x
    x = 93,250,131,207.80/483,530.10
  6. Step 6: Final answer
    x = 192,852.79

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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.