Home / 509,270.40-763,675.20-228,643.20

Finding the Fourth Proportional to 509,270.40, 763,675.20 and 228,643.20

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Solution

The fourth proportional to 509,270.40, 763,675.20 and 228,643.20 is: 342,861.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,270.40 : 763,675.20 = 228,643.20 : x
  2. Step 2: Convert to fraction form
    509,270.40/763,675.20 = 228,643.20/x
  3. Step 3: Cross multiply
    509,270.40x = 763,675.20 × 228,643.20
  4. Step 4: Simplify right side
    509,270.40x = 174,609,141,488.64
  5. Step 5: Solve for x
    x = 174,609,141,488.64/509,270.40
  6. Step 6: Final answer
    x = 342,861.36

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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.