Home / 1,435,063.82-1,980,378.86-790,469.06

Finding the Fourth Proportional to 1,435,063.82, 1,980,378.86 and 790,469.06

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Solution

The fourth proportional to 1,435,063.82, 1,980,378.86 and 790,469.06 is: 1,090,842.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,063.82 : 1,980,378.86 = 790,469.06 : x
  2. Step 2: Convert to fraction form
    1,435,063.82/1,980,378.86 = 790,469.06/x
  3. Step 3: Cross multiply
    1,435,063.82x = 1,980,378.86 × 790,469.06
  4. Step 4: Simplify right side
    1,435,063.82x = 1,565,428,215,908.07
  5. Step 5: Solve for x
    x = 1,565,428,215,908.07/1,435,063.82
  6. Step 6: Final answer
    x = 1,090,842.23

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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.