Home / 387,802.27-581,703.58-121,583.54

Finding the Fourth Proportional to 387,802.27, 581,703.58 and 121,583.54

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Solution

The fourth proportional to 387,802.27, 581,703.58 and 121,583.54 is: 182,375.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,802.27 : 581,703.58 = 121,583.54 : x
  2. Step 2: Convert to fraction form
    387,802.27/581,703.58 = 121,583.54/x
  3. Step 3: Cross multiply
    387,802.27x = 581,703.58 × 121,583.54
  4. Step 4: Simplify right side
    387,802.27x = 70,725,582,227.42
  5. Step 5: Solve for x
    x = 70,725,582,227.42/387,802.27
  6. Step 6: Final answer
    x = 182,375.37

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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.