Home / 1,053,791.35-1,454,267.31-645,814.38

Finding the Fourth Proportional to 1,053,791.35, 1,454,267.31 and 645,814.38

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Solution

The fourth proportional to 1,053,791.35, 1,454,267.31 and 645,814.38 is: 891,245.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,791.35 : 1,454,267.31 = 645,814.38 : x
  2. Step 2: Convert to fraction form
    1,053,791.35/1,454,267.31 = 645,814.38/x
  3. Step 3: Cross multiply
    1,053,791.35x = 1,454,267.31 × 645,814.38
  4. Step 4: Simplify right side
    1,053,791.35x = 939,186,741,161.92
  5. Step 5: Solve for x
    x = 939,186,741,161.92/1,053,791.35
  6. Step 6: Final answer
    x = 891,245.45

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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.