Home / 979,974-1,470,341.28-381,355.62

Finding the Fourth Proportional to 979,974, 1,470,341.28 and 381,355.62

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Solution

The fourth proportional to 979,974, 1,470,341.28 and 381,355.62 is: 572,181.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,974 : 1,470,341.28 = 381,355.62 : x
  2. Step 2: Convert to fraction form
    979,974/1,470,341.28 = 381,355.62/x
  3. Step 3: Cross multiply
    979,974x = 1,470,341.28 × 381,355.62
  4. Step 4: Simplify right side
    979,974x = 560,722,910,445.99
  5. Step 5: Solve for x
    x = 560,722,910,445.99/979,974
  6. Step 6: Final answer
    x = 572,181.42

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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.