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Finding the Fourth Proportional to 681,498.50, 940,474.35 and 375,585.90

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Solution

The fourth proportional to 681,498.50, 940,474.35 and 375,585.90 is: 518,312.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,498.50 : 940,474.35 = 375,585.90 : x
  2. Step 2: Convert to fraction form
    681,498.50/940,474.35 = 375,585.90/x
  3. Step 3: Cross multiply
    681,498.50x = 940,474.35 × 375,585.90
  4. Step 4: Simplify right side
    681,498.50x = 353,228,900,469.29
  5. Step 5: Solve for x
    x = 353,228,900,469.29/681,498.50
  6. Step 6: Final answer
    x = 518,312.07

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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.