Home / 817,558.20-1,226,774.70-344,291.40

Finding the Fourth Proportional to 817,558.20, 1,226,774.70 and 344,291.40

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Solution

The fourth proportional to 817,558.20, 1,226,774.70 and 344,291.40 is: 516,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,558.20 : 1,226,774.70 = 344,291.40 : x
  2. Step 2: Convert to fraction form
    817,558.20/1,226,774.70 = 344,291.40/x
  3. Step 3: Cross multiply
    817,558.20x = 1,226,774.70 × 344,291.40
  4. Step 4: Simplify right side
    817,558.20x = 422,367,978,947.58
  5. Step 5: Solve for x
    x = 422,367,978,947.58/817,558.20
  6. Step 6: Final answer
    x = 516,621.30

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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.