Home / 808,445.25-1,115,372.73-518,216.85

Finding the Fourth Proportional to 808,445.25, 1,115,372.73 and 518,216.85

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Solution

The fourth proportional to 808,445.25, 1,115,372.73 and 518,216.85 is: 714,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,445.25 : 1,115,372.73 = 518,216.85 : x
  2. Step 2: Convert to fraction form
    808,445.25/1,115,372.73 = 518,216.85/x
  3. Step 3: Cross multiply
    808,445.25x = 1,115,372.73 × 518,216.85
  4. Step 4: Simplify right side
    808,445.25x = 578,004,942,913.85
  5. Step 5: Solve for x
    x = 578,004,942,913.85/808,445.25
  6. Step 6: Final answer
    x = 714,958.68

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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.