Home / 1,276,819.80-1,915,073.64-330,111.24

Finding the Fourth Proportional to 1,276,819.80, 1,915,073.64 and 330,111.24

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Solution

The fourth proportional to 1,276,819.80, 1,915,073.64 and 330,111.24 is: 495,126.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,819.80 : 1,915,073.64 = 330,111.24 : x
  2. Step 2: Convert to fraction form
    1,276,819.80/1,915,073.64 = 330,111.24/x
  3. Step 3: Cross multiply
    1,276,819.80x = 1,915,073.64 × 330,111.24
  4. Step 4: Simplify right side
    1,276,819.80x = 632,187,333,991.71
  5. Step 5: Solve for x
    x = 632,187,333,991.71/1,276,819.80
  6. Step 6: Final answer
    x = 495,126.51

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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.