Home / 928,895.04-1,392,640.56-479,420.64

Finding the Fourth Proportional to 928,895.04, 1,392,640.56 and 479,420.64

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Solution

The fourth proportional to 928,895.04, 1,392,640.56 and 479,420.64 is: 718,768.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,895.04 : 1,392,640.56 = 479,420.64 : x
  2. Step 2: Convert to fraction form
    928,895.04/1,392,640.56 = 479,420.64/x
  3. Step 3: Cross multiply
    928,895.04x = 1,392,640.56 × 479,420.64
  4. Step 4: Simplify right side
    928,895.04x = 667,660,628,565.16
  5. Step 5: Solve for x
    x = 667,660,628,565.16/928,895.04
  6. Step 6: Final answer
    x = 718,768.64

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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.