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Finding the Fourth Proportional to 681,580.24, 940,634.76 and 375,711

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Solution

The fourth proportional to 681,580.24, 940,634.76 and 375,711 is: 518,510.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,580.24 : 940,634.76 = 375,711 : x
  2. Step 2: Convert to fraction form
    681,580.24/940,634.76 = 375,711/x
  3. Step 3: Cross multiply
    681,580.24x = 940,634.76 × 375,711
  4. Step 4: Simplify right side
    681,580.24x = 353,406,826,314.36
  5. Step 5: Solve for x
    x = 353,406,826,314.36/681,580.24
  6. Step 6: Final answer
    x = 518,510.96

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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.