Home / 1,310,790.60-1,966,250.70-680,934.60

Finding the Fourth Proportional to 1,310,790.60, 1,966,250.70 and 680,934.60

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Solution

The fourth proportional to 1,310,790.60, 1,966,250.70 and 680,934.60 is: 1,021,435.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,790.60 : 1,966,250.70 = 680,934.60 : x
  2. Step 2: Convert to fraction form
    1,310,790.60/1,966,250.70 = 680,934.60/x
  3. Step 3: Cross multiply
    1,310,790.60x = 1,966,250.70 × 680,934.60
  4. Step 4: Simplify right side
    1,310,790.60x = 1,338,888,133,904.22
  5. Step 5: Solve for x
    x = 1,338,888,133,904.22/1,310,790.60
  6. Step 6: Final answer
    x = 1,021,435.56

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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.