Home / 891,338.39-1,337,415.83-386,053.91

Finding the Fourth Proportional to 891,338.39, 1,337,415.83 and 386,053.91

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Solution

The fourth proportional to 891,338.39, 1,337,415.83 and 386,053.91 is: 579,257.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,338.39 : 1,337,415.83 = 386,053.91 : x
  2. Step 2: Convert to fraction form
    891,338.39/1,337,415.83 = 386,053.91/x
  3. Step 3: Cross multiply
    891,338.39x = 1,337,415.83 × 386,053.91
  4. Step 4: Simplify right side
    891,338.39x = 516,314,610,467.40
  5. Step 5: Solve for x
    x = 516,314,610,467.40/891,338.39
  6. Step 6: Final answer
    x = 579,257.68

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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.