Home / 851,356.55-1,276,997.90-211,646.90

Finding the Fourth Proportional to 851,356.55, 1,276,997.90 and 211,646.90

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Solution

The fourth proportional to 851,356.55, 1,276,997.90 and 211,646.90 is: 317,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,356.55 : 1,276,997.90 = 211,646.90 : x
  2. Step 2: Convert to fraction form
    851,356.55/1,276,997.90 = 211,646.90/x
  3. Step 3: Cross multiply
    851,356.55x = 1,276,997.90 × 211,646.90
  4. Step 4: Simplify right side
    851,356.55x = 270,272,648,975.77
  5. Step 5: Solve for x
    x = 270,272,648,975.77/851,356.55
  6. Step 6: Final answer
    x = 317,461.17

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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.