Home / 1,278,303.73-1,916,955.32-479,149.43

Finding the Fourth Proportional to 1,278,303.73, 1,916,955.32 and 479,149.43

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Solution

The fourth proportional to 1,278,303.73, 1,916,955.32 and 479,149.43 is: 718,536.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,303.73 : 1,916,955.32 = 479,149.43 : x
  2. Step 2: Convert to fraction form
    1,278,303.73/1,916,955.32 = 479,149.43/x
  3. Step 3: Cross multiply
    1,278,303.73x = 1,916,955.32 × 479,149.43
  4. Step 4: Simplify right side
    1,278,303.73x = 918,508,036,932.94
  5. Step 5: Solve for x
    x = 918,508,036,932.94/1,278,303.73
  6. Step 6: Final answer
    x = 718,536.62

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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.