Home / 812,675.76-1,219,057.38-338,884.08

Finding the Fourth Proportional to 812,675.76, 1,219,057.38 and 338,884.08

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Solution

The fourth proportional to 812,675.76, 1,219,057.38 and 338,884.08 is: 508,344.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,675.76 : 1,219,057.38 = 338,884.08 : x
  2. Step 2: Convert to fraction form
    812,675.76/1,219,057.38 = 338,884.08/x
  3. Step 3: Cross multiply
    812,675.76x = 1,219,057.38 × 338,884.08
  4. Step 4: Simplify right side
    812,675.76x = 413,119,138,688.51
  5. Step 5: Solve for x
    x = 413,119,138,688.51/812,675.76
  6. Step 6: Final answer
    x = 508,344.36

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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.