Home / 681,108.94-1,021,663.14-316,333.54

Finding the Fourth Proportional to 681,108.94, 1,021,663.14 and 316,333.54

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Solution

The fourth proportional to 681,108.94, 1,021,663.14 and 316,333.54 is: 474,500.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,108.94 : 1,021,663.14 = 316,333.54 : x
  2. Step 2: Convert to fraction form
    681,108.94/1,021,663.14 = 316,333.54/x
  3. Step 3: Cross multiply
    681,108.94x = 1,021,663.14 × 316,333.54
  4. Step 4: Simplify right side
    681,108.94x = 323,186,317,763.72
  5. Step 5: Solve for x
    x = 323,186,317,763.72/681,108.94
  6. Step 6: Final answer
    x = 474,500.18

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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.