Home / 1,356,022.08-1,872,007.20-955,402.56

Finding the Fourth Proportional to 1,356,022.08, 1,872,007.20 and 955,402.56

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Solution

The fourth proportional to 1,356,022.08, 1,872,007.20 and 955,402.56 is: 1,318,946.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356,022.08 : 1,872,007.20 = 955,402.56 : x
  2. Step 2: Convert to fraction form
    1,356,022.08/1,872,007.20 = 955,402.56/x
  3. Step 3: Cross multiply
    1,356,022.08x = 1,872,007.20 × 955,402.56
  4. Step 4: Simplify right side
    1,356,022.08x = 1,788,520,471,218.43
  5. Step 5: Solve for x
    x = 1,788,520,471,218.43/1,356,022.08
  6. Step 6: Final answer
    x = 1,318,946.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.