Home / 928,658.29-1,392,992.56-422,866.70

Finding the Fourth Proportional to 928,658.29, 1,392,992.56 and 422,866.70

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Solution

The fourth proportional to 928,658.29, 1,392,992.56 and 422,866.70 is: 634,302.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,658.29 : 1,392,992.56 = 422,866.70 : x
  2. Step 2: Convert to fraction form
    928,658.29/1,392,992.56 = 422,866.70/x
  3. Step 3: Cross multiply
    928,658.29x = 1,392,992.56 × 422,866.70
  4. Step 4: Simplify right side
    928,658.29x = 589,050,170,866.20
  5. Step 5: Solve for x
    x = 589,050,170,866.20/928,658.29
  6. Step 6: Final answer
    x = 634,302.39

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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.