Home / 521,788.20-782,780.62-197,673.38

Finding the Fourth Proportional to 521,788.20, 782,780.62 and 197,673.38

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Solution

The fourth proportional to 521,788.20, 782,780.62 and 197,673.38 is: 296,547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,788.20 : 782,780.62 = 197,673.38 : x
  2. Step 2: Convert to fraction form
    521,788.20/782,780.62 = 197,673.38/x
  3. Step 3: Cross multiply
    521,788.20x = 782,780.62 × 197,673.38
  4. Step 4: Simplify right side
    521,788.20x = 154,734,890,222.51
  5. Step 5: Solve for x
    x = 154,734,890,222.51/521,788.20
  6. Step 6: Final answer
    x = 296,547.32

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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.