Home / 791,255.70-1,091,931.33-428,688.60

Finding the Fourth Proportional to 791,255.70, 1,091,931.33 and 428,688.60

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Solution

The fourth proportional to 791,255.70, 1,091,931.33 and 428,688.60 is: 591,589.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,255.70 : 1,091,931.33 = 428,688.60 : x
  2. Step 2: Convert to fraction form
    791,255.70/1,091,931.33 = 428,688.60/x
  3. Step 3: Cross multiply
    791,255.70x = 1,091,931.33 × 428,688.60
  4. Step 4: Simplify right side
    791,255.70x = 468,098,513,153.84
  5. Step 5: Solve for x
    x = 468,098,513,153.84/791,255.70
  6. Step 6: Final answer
    x = 591,589.44

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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.