Home / 928,736.94-1,281,567.35-520,855.50

Finding the Fourth Proportional to 928,736.94, 1,281,567.35 and 520,855.50

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Solution

The fourth proportional to 928,736.94, 1,281,567.35 and 520,855.50 is: 718,730.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,736.94 : 1,281,567.35 = 520,855.50 : x
  2. Step 2: Convert to fraction form
    928,736.94/1,281,567.35 = 520,855.50/x
  3. Step 3: Cross multiply
    928,736.94x = 1,281,567.35 × 520,855.50
  4. Step 4: Simplify right side
    928,736.94x = 667,511,402,867.93
  5. Step 5: Solve for x
    x = 667,511,402,867.93/928,736.94
  6. Step 6: Final answer
    x = 718,730.33

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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.