Home / 681,838.70-940,894.04-375,898.36

Finding the Fourth Proportional to 681,838.70, 940,894.04 and 375,898.36

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Solution

The fourth proportional to 681,838.70, 940,894.04 and 375,898.36 is: 518,715.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,838.70 : 940,894.04 = 375,898.36 : x
  2. Step 2: Convert to fraction form
    681,838.70/940,894.04 = 375,898.36/x
  3. Step 3: Cross multiply
    681,838.70x = 940,894.04 × 375,898.36
  4. Step 4: Simplify right side
    681,838.70x = 353,680,526,569.77
  5. Step 5: Solve for x
    x = 353,680,526,569.77/681,838.70
  6. Step 6: Final answer
    x = 518,715.83

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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.