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Finding the Fourth Proportional to 520,934.80, 783,072.60 and 483,955.60

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Solution

The fourth proportional to 520,934.80, 783,072.60 and 483,955.60 is: 727,485.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,934.80 : 783,072.60 = 483,955.60 : x
  2. Step 2: Convert to fraction form
    520,934.80/783,072.60 = 483,955.60/x
  3. Step 3: Cross multiply
    520,934.80x = 783,072.60 × 483,955.60
  4. Step 4: Simplify right side
    520,934.80x = 378,972,369,976.56
  5. Step 5: Solve for x
    x = 378,972,369,976.56/520,934.80
  6. Step 6: Final answer
    x = 727,485.22

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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.