Home / 1,310,795.10-1,966,257.45-680,939.10

Finding the Fourth Proportional to 1,310,795.10, 1,966,257.45 and 680,939.10

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Solution

The fourth proportional to 1,310,795.10, 1,966,257.45 and 680,939.10 is: 1,021,442.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,795.10 : 1,966,257.45 = 680,939.10 : x
  2. Step 2: Convert to fraction form
    1,310,795.10/1,966,257.45 = 680,939.10/x
  3. Step 3: Cross multiply
    1,310,795.10x = 1,966,257.45 × 680,939.10
  4. Step 4: Simplify right side
    1,310,795.10x = 1,338,901,578,371.30
  5. Step 5: Solve for x
    x = 1,338,901,578,371.30/1,310,795.10
  6. Step 6: Final answer
    x = 1,021,442.31

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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.