Home / 1,240,813.34-1,711,886.37-811,344.86

Finding the Fourth Proportional to 1,240,813.34, 1,711,886.37 and 811,344.86

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Solution

The fourth proportional to 1,240,813.34, 1,711,886.37 and 811,344.86 is: 1,119,370.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,813.34 : 1,711,886.37 = 811,344.86 : x
  2. Step 2: Convert to fraction form
    1,240,813.34/1,711,886.37 = 811,344.86/x
  3. Step 3: Cross multiply
    1,240,813.34x = 1,711,886.37 × 811,344.86
  4. Step 4: Simplify right side
    1,240,813.34x = 1,388,930,207,203.56
  5. Step 5: Solve for x
    x = 1,388,930,207,203.56/1,240,813.34
  6. Step 6: Final answer
    x = 1,119,370.79

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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.