Home / 545,899.98-819,103.58-208,829.20

Finding the Fourth Proportional to 545,899.98, 819,103.58 and 208,829.20

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Solution

The fourth proportional to 545,899.98, 819,103.58 and 208,829.20 is: 313,340.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,899.98 : 819,103.58 = 208,829.20 : x
  2. Step 2: Convert to fraction form
    545,899.98/819,103.58 = 208,829.20/x
  3. Step 3: Cross multiply
    545,899.98x = 819,103.58 × 208,829.20
  4. Step 4: Simplify right side
    545,899.98x = 171,052,745,328.54
  5. Step 5: Solve for x
    x = 171,052,745,328.54/545,899.98
  6. Step 6: Final answer
    x = 313,340.82

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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.