Home / 791,211.75-1,091,870.89-428,644.81

Finding the Fourth Proportional to 791,211.75, 1,091,870.89 and 428,644.81

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Solution

The fourth proportional to 791,211.75, 1,091,870.89 and 428,644.81 is: 591,529.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,211.75 : 1,091,870.89 = 428,644.81 : x
  2. Step 2: Convert to fraction form
    791,211.75/1,091,870.89 = 428,644.81/x
  3. Step 3: Cross multiply
    791,211.75x = 1,091,870.89 × 428,644.81
  4. Step 4: Simplify right side
    791,211.75x = 468,024,790,188.58
  5. Step 5: Solve for x
    x = 468,024,790,188.58/791,211.75
  6. Step 6: Final answer
    x = 591,529.12

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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.