Home / 805,672.40-1,208,261.60-265,829.04

Finding the Fourth Proportional to 805,672.40, 1,208,261.60 and 265,829.04

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Solution

The fourth proportional to 805,672.40, 1,208,261.60 and 265,829.04 is: 398,662.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,672.40 : 1,208,261.60 = 265,829.04 : x
  2. Step 2: Convert to fraction form
    805,672.40/1,208,261.60 = 265,829.04/x
  3. Step 3: Cross multiply
    805,672.40x = 1,208,261.60 × 265,829.04
  4. Step 4: Simplify right side
    805,672.40x = 321,191,021,196.86
  5. Step 5: Solve for x
    x = 321,191,021,196.86/805,672.40
  6. Step 6: Final answer
    x = 398,662.06

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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.