Home / 1,300,505.13-1,794,575.39-810,429.21

Finding the Fourth Proportional to 1,300,505.13, 1,794,575.39 and 810,429.21

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Solution

The fourth proportional to 1,300,505.13, 1,794,575.39 and 810,429.21 is: 1,118,316.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,505.13 : 1,794,575.39 = 810,429.21 : x
  2. Step 2: Convert to fraction form
    1,300,505.13/1,794,575.39 = 810,429.21/x
  3. Step 3: Cross multiply
    1,300,505.13x = 1,794,575.39 × 810,429.21
  4. Step 4: Simplify right side
    1,300,505.13x = 1,454,376,311,551.00
  5. Step 5: Solve for x
    x = 1,454,376,311,551.00/1,300,505.13
  6. Step 6: Final answer
    x = 1,118,316.47

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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.