Home / 856,078.31-1,181,400.45-493,495.58

Finding the Fourth Proportional to 856,078.31, 1,181,400.45 and 493,495.58

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Solution

The fourth proportional to 856,078.31, 1,181,400.45 and 493,495.58 is: 681,031.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,078.31 : 1,181,400.45 = 493,495.58 : x
  2. Step 2: Convert to fraction form
    856,078.31/1,181,400.45 = 493,495.58/x
  3. Step 3: Cross multiply
    856,078.31x = 1,181,400.45 × 493,495.58
  4. Step 4: Simplify right side
    856,078.31x = 583,015,900,285.01
  5. Step 5: Solve for x
    x = 583,015,900,285.01/856,078.31
  6. Step 6: Final answer
    x = 681,031.04

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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.