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Finding the Fourth Proportional to 681,550.52, 940,700 and 423,622.28

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Solution

The fourth proportional to 681,550.52, 940,700 and 423,622.28 is: 584,698.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,550.52 : 940,700 = 423,622.28 : x
  2. Step 2: Convert to fraction form
    681,550.52/940,700 = 423,622.28/x
  3. Step 3: Cross multiply
    681,550.52x = 940,700 × 423,622.28
  4. Step 4: Simplify right side
    681,550.52x = 398,501,478,796
  5. Step 5: Solve for x
    x = 398,501,478,796/681,550.52
  6. Step 6: Final answer
    x = 584,698.37

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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.