Home / 557,865.45-770,225.06-428,573.64

Finding the Fourth Proportional to 557,865.45, 770,225.06 and 428,573.64

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Solution

The fourth proportional to 557,865.45, 770,225.06 and 428,573.64 is: 591,716.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,865.45 : 770,225.06 = 428,573.64 : x
  2. Step 2: Convert to fraction form
    557,865.45/770,225.06 = 428,573.64/x
  3. Step 3: Cross multiply
    557,865.45x = 770,225.06 × 428,573.64
  4. Step 4: Simplify right side
    557,865.45x = 330,098,155,440.55
  5. Step 5: Solve for x
    x = 330,098,155,440.55/557,865.45
  6. Step 6: Final answer
    x = 591,716.44

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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.