Home / 717,960.54-990,792.09-395,682.33

Finding the Fourth Proportional to 717,960.54, 990,792.09 and 395,682.33

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Solution

The fourth proportional to 717,960.54, 990,792.09 and 395,682.33 is: 546,045.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,960.54 : 990,792.09 = 395,682.33 : x
  2. Step 2: Convert to fraction form
    717,960.54/990,792.09 = 395,682.33/x
  3. Step 3: Cross multiply
    717,960.54x = 990,792.09 × 395,682.33
  4. Step 4: Simplify right side
    717,960.54x = 392,038,922,716.77
  5. Step 5: Solve for x
    x = 392,038,922,716.77/717,960.54
  6. Step 6: Final answer
    x = 546,045.22

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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.