Home / 791,378.82-1,092,100.95-428,812.50

Finding the Fourth Proportional to 791,378.82, 1,092,100.95 and 428,812.50

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Solution

The fourth proportional to 791,378.82, 1,092,100.95 and 428,812.50 is: 591,760.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,378.82 : 1,092,100.95 = 428,812.50 : x
  2. Step 2: Convert to fraction form
    791,378.82/1,092,100.95 = 428,812.50/x
  3. Step 3: Cross multiply
    791,378.82x = 1,092,100.95 × 428,812.50
  4. Step 4: Simplify right side
    791,378.82x = 468,306,538,621.88
  5. Step 5: Solve for x
    x = 468,306,538,621.88/791,378.82
  6. Step 6: Final answer
    x = 591,760.26

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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.