Home / 791,106.45-1,091,732.14-428,530.31

Finding the Fourth Proportional to 791,106.45, 1,091,732.14 and 428,530.31

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Solution

The fourth proportional to 791,106.45, 1,091,732.14 and 428,530.31 is: 591,374.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,106.45 : 1,091,732.14 = 428,530.31 : x
  2. Step 2: Convert to fraction form
    791,106.45/1,091,732.14 = 428,530.31/x
  3. Step 3: Cross multiply
    791,106.45x = 1,091,732.14 × 428,530.31
  4. Step 4: Simplify right side
    791,106.45x = 467,840,311,562.16
  5. Step 5: Solve for x
    x = 467,840,311,562.16/791,106.45
  6. Step 6: Final answer
    x = 591,374.67

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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.