Home / 521,899.72-782,845.44-310,135.24

Finding the Fourth Proportional to 521,899.72, 782,845.44 and 310,135.24

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Solution

The fourth proportional to 521,899.72, 782,845.44 and 310,135.24 is: 465,200.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,899.72 : 782,845.44 = 310,135.24 : x
  2. Step 2: Convert to fraction form
    521,899.72/782,845.44 = 310,135.24/x
  3. Step 3: Cross multiply
    521,899.72x = 782,845.44 × 310,135.24
  4. Step 4: Simplify right side
    521,899.72x = 242,787,958,417.31
  5. Step 5: Solve for x
    x = 242,787,958,417.31/521,899.72
  6. Step 6: Final answer
    x = 465,200.40

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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.