Home / 928,223.20-1,392,731.70-388,605.52

Finding the Fourth Proportional to 928,223.20, 1,392,731.70 and 388,605.52

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Solution

The fourth proportional to 928,223.20, 1,392,731.70 and 388,605.52 is: 583,074.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,223.20 : 1,392,731.70 = 388,605.52 : x
  2. Step 2: Convert to fraction form
    928,223.20/1,392,731.70 = 388,605.52/x
  3. Step 3: Cross multiply
    928,223.20x = 1,392,731.70 × 388,605.52
  4. Step 4: Simplify right side
    928,223.20x = 541,223,226,498.98
  5. Step 5: Solve for x
    x = 541,223,226,498.98/928,223.20
  6. Step 6: Final answer
    x = 583,074.44

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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.