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Finding the Fourth Proportional to 681,506.71, 940,485.69 and 375,594.12

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Solution

The fourth proportional to 681,506.71, 940,485.69 and 375,594.12 is: 518,323.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,506.71 : 940,485.69 = 375,594.12 : x
  2. Step 2: Convert to fraction form
    681,506.71/940,485.69 = 375,594.12/x
  3. Step 3: Cross multiply
    681,506.71x = 940,485.69 × 375,594.12
  4. Step 4: Simplify right side
    681,506.71x = 353,240,895,108.14
  5. Step 5: Solve for x
    x = 353,240,895,108.14/681,506.71
  6. Step 6: Final answer
    x = 518,323.43

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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.