Home / 520,823.80-782,906.10-483,844.60

Finding the Fourth Proportional to 520,823.80, 782,906.10 and 483,844.60

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Solution

The fourth proportional to 520,823.80, 782,906.10 and 483,844.60 is: 727,318.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,823.80 : 782,906.10 = 483,844.60 : x
  2. Step 2: Convert to fraction form
    520,823.80/782,906.10 = 483,844.60/x
  3. Step 3: Cross multiply
    520,823.80x = 782,906.10 × 483,844.60
  4. Step 4: Simplify right side
    520,823.80x = 378,804,888,792.06
  5. Step 5: Solve for x
    x = 378,804,888,792.06/520,823.80
  6. Step 6: Final answer
    x = 727,318.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.