Home / 1,313,781.30-1,969,725.72-807,295.68

Finding the Fourth Proportional to 1,313,781.30, 1,969,725.72 and 807,295.68

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Solution

The fourth proportional to 1,313,781.30, 1,969,725.72 and 807,295.68 is: 1,210,362.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,781.30 : 1,969,725.72 = 807,295.68 : x
  2. Step 2: Convert to fraction form
    1,313,781.30/1,969,725.72 = 807,295.68/x
  3. Step 3: Cross multiply
    1,313,781.30x = 1,969,725.72 × 807,295.68
  4. Step 4: Simplify right side
    1,313,781.30x = 1,590,151,064,540.89
  5. Step 5: Solve for x
    x = 1,590,151,064,540.89/1,313,781.30
  6. Step 6: Final answer
    x = 1,210,362.08

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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.