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Finding the Fourth Proportional to 525,270.20, 782,908.60 and 495,373.88

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Solution

The fourth proportional to 525,270.20, 782,908.60 and 495,373.88 is: 738,348.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,270.20 : 782,908.60 = 495,373.88 : x
  2. Step 2: Convert to fraction form
    525,270.20/782,908.60 = 495,373.88/x
  3. Step 3: Cross multiply
    525,270.20x = 782,908.60 × 495,373.88
  4. Step 4: Simplify right side
    525,270.20x = 387,832,470,867.37
  5. Step 5: Solve for x
    x = 387,832,470,867.37/525,270.20
  6. Step 6: Final answer
    x = 738,348.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.