Home / 1,077,478.17-1,616,453.79-319,378.11

Finding the Fourth Proportional to 1,077,478.17, 1,616,453.79 and 319,378.11

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Solution

The fourth proportional to 1,077,478.17, 1,616,453.79 and 319,378.11 is: 479,137.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,478.17 : 1,616,453.79 = 319,378.11 : x
  2. Step 2: Convert to fraction form
    1,077,478.17/1,616,453.79 = 319,378.11/x
  3. Step 3: Cross multiply
    1,077,478.17x = 1,616,453.79 × 319,378.11
  4. Step 4: Simplify right side
    1,077,478.17x = 516,259,949,093.17
  5. Step 5: Solve for x
    x = 516,259,949,093.17/1,077,478.17
  6. Step 6: Final answer
    x = 479,137.27

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1.5x scale

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.