Home / 681,731.31-940,788.86-375,812.67

Finding the Fourth Proportional to 681,731.31, 940,788.86 and 375,812.67

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Solution

The fourth proportional to 681,731.31, 940,788.86 and 375,812.67 is: 518,621.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,731.31 : 940,788.86 = 375,812.67 : x
  2. Step 2: Convert to fraction form
    681,731.31/940,788.86 = 375,812.67/x
  3. Step 3: Cross multiply
    681,731.31x = 940,788.86 × 375,812.67
  4. Step 4: Simplify right side
    681,731.31x = 353,560,371,503.79
  5. Step 5: Solve for x
    x = 353,560,371,503.79/681,731.31
  6. Step 6: Final answer
    x = 518,621.29

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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.