Home / 1,053,791.40-1,454,267.35-645,814.40

Finding the Fourth Proportional to 1,053,791.40, 1,454,267.35 and 645,814.40

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Solution

The fourth proportional to 1,053,791.40, 1,454,267.35 and 645,814.40 is: 891,245.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,791.40 : 1,454,267.35 = 645,814.40 : x
  2. Step 2: Convert to fraction form
    1,053,791.40/1,454,267.35 = 645,814.40/x
  3. Step 3: Cross multiply
    1,053,791.40x = 1,454,267.35 × 645,814.40
  4. Step 4: Simplify right side
    1,053,791.40x = 939,186,797,796.03
  5. Step 5: Solve for x
    x = 939,186,797,796.03/1,053,791.40
  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.