Home / 441,345.48-661,821.21-125,728.58

Finding the Fourth Proportional to 441,345.48, 661,821.21 and 125,728.58

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Solution

The fourth proportional to 441,345.48, 661,821.21 and 125,728.58 is: 188,536.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,345.48 : 661,821.21 = 125,728.58 : x
  2. Step 2: Convert to fraction form
    441,345.48/661,821.21 = 125,728.58/x
  3. Step 3: Cross multiply
    441,345.48x = 661,821.21 × 125,728.58
  4. Step 4: Simplify right side
    441,345.48x = 83,209,837,638.08
  5. Step 5: Solve for x
    x = 83,209,837,638.08/441,345.48
  6. Step 6: Final answer
    x = 188,536.74

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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.