Home / 999,298.85-1,499,519.63-422,876.73

Finding the Fourth Proportional to 999,298.85, 1,499,519.63 and 422,876.73

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Solution

The fourth proportional to 999,298.85, 1,499,519.63 and 422,876.73 is: 634,556.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,298.85 : 1,499,519.63 = 422,876.73 : x
  2. Step 2: Convert to fraction form
    999,298.85/1,499,519.63 = 422,876.73/x
  3. Step 3: Cross multiply
    999,298.85x = 1,499,519.63 × 422,876.73
  4. Step 4: Simplify right side
    999,298.85x = 634,111,948,760.07
  5. Step 5: Solve for x
    x = 634,111,948,760.07/999,298.85
  6. Step 6: Final answer
    x = 634,556.87

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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.