Home / 1,273,932.08-1,911,148.68-420,969.32

Finding the Fourth Proportional to 1,273,932.08, 1,911,148.68 and 420,969.32

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Solution

The fourth proportional to 1,273,932.08, 1,911,148.68 and 420,969.32 is: 631,536.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,932.08 : 1,911,148.68 = 420,969.32 : x
  2. Step 2: Convert to fraction form
    1,273,932.08/1,911,148.68 = 420,969.32/x
  3. Step 3: Cross multiply
    1,273,932.08x = 1,911,148.68 × 420,969.32
  4. Step 4: Simplify right side
    1,273,932.08x = 804,534,960,238.50
  5. Step 5: Solve for x
    x = 804,534,960,238.50/1,273,932.08
  6. Step 6: Final answer
    x = 631,536.78

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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.