Home / 717,774.87-1,076,819.96-212,296.47

Finding the Fourth Proportional to 717,774.87, 1,076,819.96 and 212,296.47

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Solution

The fourth proportional to 717,774.87, 1,076,819.96 and 212,296.47 is: 318,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,774.87 : 1,076,819.96 = 212,296.47 : x
  2. Step 2: Convert to fraction form
    717,774.87/1,076,819.96 = 212,296.47/x
  3. Step 3: Cross multiply
    717,774.87x = 1,076,819.96 × 212,296.47
  4. Step 4: Simplify right side
    717,774.87x = 228,605,076,333.54
  5. Step 5: Solve for x
    x = 228,605,076,333.54/717,774.87
  6. Step 6: Final answer
    x = 318,491.33

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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.