Home / 620,521.28-929,920.77-282,736.43

Finding the Fourth Proportional to 620,521.28, 929,920.77 and 282,736.43

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Solution

The fourth proportional to 620,521.28, 929,920.77 and 282,736.43 is: 423,712.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,521.28 : 929,920.77 = 282,736.43 : x
  2. Step 2: Convert to fraction form
    620,521.28/929,920.77 = 282,736.43/x
  3. Step 3: Cross multiply
    620,521.28x = 929,920.77 × 282,736.43
  4. Step 4: Simplify right side
    620,521.28x = 262,922,478,692.65
  5. Step 5: Solve for x
    x = 262,922,478,692.65/620,521.28
  6. Step 6: Final answer
    x = 423,712.27

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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.