Home / 986,446.60-1,479,712.96-312,577.56

Finding the Fourth Proportional to 986,446.60, 1,479,712.96 and 312,577.56

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Solution

The fourth proportional to 986,446.60, 1,479,712.96 and 312,577.56 is: 468,879.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,446.60 : 1,479,712.96 = 312,577.56 : x
  2. Step 2: Convert to fraction form
    986,446.60/1,479,712.96 = 312,577.56/x
  3. Step 3: Cross multiply
    986,446.60x = 1,479,712.96 × 312,577.56
  4. Step 4: Simplify right side
    986,446.60x = 462,525,066,927.90
  5. Step 5: Solve for x
    x = 462,525,066,927.90/986,446.60
  6. Step 6: Final answer
    x = 468,879.99

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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.