Home / 681,749.34-940,846.23-379,945.50

Finding the Fourth Proportional to 681,749.34, 940,846.23 and 379,945.50

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Solution

The fourth proportional to 681,749.34, 940,846.23 and 379,945.50 is: 524,342.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,749.34 : 940,846.23 = 379,945.50 : x
  2. Step 2: Convert to fraction form
    681,749.34/940,846.23 = 379,945.50/x
  3. Step 3: Cross multiply
    681,749.34x = 940,846.23 × 379,945.50
  4. Step 4: Simplify right side
    681,749.34x = 357,470,291,280.47
  5. Step 5: Solve for x
    x = 357,470,291,280.47/681,749.34
  6. Step 6: Final answer
    x = 524,342.70

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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.