Home / 681,636.57-940,664.74-375,724.69

Finding the Fourth Proportional to 681,636.57, 940,664.74 and 375,724.69

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Solution

The fourth proportional to 681,636.57, 940,664.74 and 375,724.69 is: 518,503.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,636.57 : 940,664.74 = 375,724.69 : x
  2. Step 2: Convert to fraction form
    681,636.57/940,664.74 = 375,724.69/x
  3. Step 3: Cross multiply
    681,636.57x = 940,664.74 × 375,724.69
  4. Step 4: Simplify right side
    681,636.57x = 353,430,969,478.45
  5. Step 5: Solve for x
    x = 353,430,969,478.45/681,636.57
  6. Step 6: Final answer
    x = 518,503.53

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1.5x scale

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.