Home / 539,335.80-808,890.30-272,845.80

Finding the Fourth Proportional to 539,335.80, 808,890.30 and 272,845.80

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Solution

The fourth proportional to 539,335.80, 808,890.30 and 272,845.80 is: 409,211.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,335.80 : 808,890.30 = 272,845.80 : x
  2. Step 2: Convert to fraction form
    539,335.80/808,890.30 = 272,845.80/x
  3. Step 3: Cross multiply
    539,335.80x = 808,890.30 × 272,845.80
  4. Step 4: Simplify right side
    539,335.80x = 220,702,321,015.74
  5. Step 5: Solve for x
    x = 220,702,321,015.74/539,335.80
  6. Step 6: Final answer
    x = 409,211.33

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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.