Home / 928,735.94-1,281,565.97-520,854.50

Finding the Fourth Proportional to 928,735.94, 1,281,565.97 and 520,854.50

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Solution

The fourth proportional to 928,735.94, 1,281,565.97 and 520,854.50 is: 718,728.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,735.94 : 1,281,565.97 = 520,854.50 : x
  2. Step 2: Convert to fraction form
    928,735.94/1,281,565.97 = 520,854.50/x
  3. Step 3: Cross multiply
    928,735.94x = 1,281,565.97 × 520,854.50
  4. Step 4: Simplify right side
    928,735.94x = 667,509,402,521.37
  5. Step 5: Solve for x
    x = 667,509,402,521.37/928,735.94
  6. Step 6: Final answer
    x = 718,728.95

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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.