Home / 840,446.96-1,159,871.64-477,904.56

Finding the Fourth Proportional to 840,446.96, 1,159,871.64 and 477,904.56

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Solution

The fourth proportional to 840,446.96, 1,159,871.64 and 477,904.56 is: 659,539.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,446.96 : 1,159,871.64 = 477,904.56 : x
  2. Step 2: Convert to fraction form
    840,446.96/1,159,871.64 = 477,904.56/x
  3. Step 3: Cross multiply
    840,446.96x = 1,159,871.64 × 477,904.56
  4. Step 4: Simplify right side
    840,446.96x = 554,307,945,770.68
  5. Step 5: Solve for x
    x = 554,307,945,770.68/840,446.96
  6. Step 6: Final answer
    x = 659,539.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.