Home / 509,039.02-763,488.80-281,755.04

Finding the Fourth Proportional to 509,039.02, 763,488.80 and 281,755.04

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Solution

The fourth proportional to 509,039.02, 763,488.80 and 281,755.04 is: 422,593.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,039.02 : 763,488.80 = 281,755.04 : x
  2. Step 2: Convert to fraction form
    509,039.02/763,488.80 = 281,755.04/x
  3. Step 3: Cross multiply
    509,039.02x = 763,488.80 × 281,755.04
  4. Step 4: Simplify right side
    509,039.02x = 215,116,817,383.55
  5. Step 5: Solve for x
    x = 215,116,817,383.55/509,039.02
  6. Step 6: Final answer
    x = 422,593.96

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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.