Home / 1,328,689.92-1,992,069.34-529,731.84

Finding the Fourth Proportional to 1,328,689.92, 1,992,069.34 and 529,731.84

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Solution

The fourth proportional to 1,328,689.92, 1,992,069.34 and 529,731.84 is: 794,212.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,689.92 : 1,992,069.34 = 529,731.84 : x
  2. Step 2: Convert to fraction form
    1,328,689.92/1,992,069.34 = 529,731.84/x
  3. Step 3: Cross multiply
    1,328,689.92x = 1,992,069.34 × 529,731.84
  4. Step 4: Simplify right side
    1,328,689.92x = 1,055,262,556,885.79
  5. Step 5: Solve for x
    x = 1,055,262,556,885.79/1,328,689.92
  6. Step 6: Final answer
    x = 794,212.81

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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.