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Finding the Fourth Proportional to 519,974.63, 717,499.02 and 305,036.27

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Solution

The fourth proportional to 519,974.63, 717,499.02 and 305,036.27 is: 420,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,974.63 : 717,499.02 = 305,036.27 : x
  2. Step 2: Convert to fraction form
    519,974.63/717,499.02 = 305,036.27/x
  3. Step 3: Cross multiply
    519,974.63x = 717,499.02 × 305,036.27
  4. Step 4: Simplify right side
    519,974.63x = 218,863,224,789.46
  5. Step 5: Solve for x
    x = 218,863,224,789.46/519,974.63
  6. Step 6: Final answer
    x = 420,911.35

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1.5x scale

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.