Home / 1,310,792.60-1,966,253.70-680,936.60

Finding the Fourth Proportional to 1,310,792.60, 1,966,253.70 and 680,936.60

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Solution

The fourth proportional to 1,310,792.60, 1,966,253.70 and 680,936.60 is: 1,021,438.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,792.60 : 1,966,253.70 = 680,936.60 : x
  2. Step 2: Convert to fraction form
    1,310,792.60/1,966,253.70 = 680,936.60/x
  3. Step 3: Cross multiply
    1,310,792.60x = 1,966,253.70 × 680,936.60
  4. Step 4: Simplify right side
    1,310,792.60x = 1,338,894,109,215.42
  5. Step 5: Solve for x
    x = 1,338,894,109,215.42/1,310,792.60
  6. Step 6: Final answer
    x = 1,021,438.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.