Home / 928,911.03-1,281,794.73-520,928.91

Finding the Fourth Proportional to 928,911.03, 1,281,794.73 and 520,928.91

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Solution

The fourth proportional to 928,911.03, 1,281,794.73 and 520,928.91 is: 718,824.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,911.03 : 1,281,794.73 = 520,928.91 : x
  2. Step 2: Convert to fraction form
    928,911.03/1,281,794.73 = 520,928.91/x
  3. Step 3: Cross multiply
    928,911.03x = 1,281,794.73 × 520,928.91
  4. Step 4: Simplify right side
    928,911.03x = 667,723,931,542.64
  5. Step 5: Solve for x
    x = 667,723,931,542.64/928,911.03
  6. Step 6: Final answer
    x = 718,824.42

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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.