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Finding the Fourth Proportional to 520,894.02, 785,245.20 and 486,173.94

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Solution

The fourth proportional to 520,894.02, 785,245.20 and 486,173.94 is: 732,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,894.02 : 785,245.20 = 486,173.94 : x
  2. Step 2: Convert to fraction form
    520,894.02/785,245.20 = 486,173.94/x
  3. Step 3: Cross multiply
    520,894.02x = 785,245.20 × 486,173.94
  4. Step 4: Simplify right side
    520,894.02x = 381,765,752,750.09
  5. Step 5: Solve for x
    x = 381,765,752,750.09/520,894.02
  6. Step 6: Final answer
    x = 732,904.85

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.