Home / 1,276,813.80-1,915,064.64-330,105.24

Finding the Fourth Proportional to 1,276,813.80, 1,915,064.64 and 330,105.24

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Solution

The fourth proportional to 1,276,813.80, 1,915,064.64 and 330,105.24 is: 495,117.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,813.80 : 1,915,064.64 = 330,105.24 : x
  2. Step 2: Convert to fraction form
    1,276,813.80/1,915,064.64 = 330,105.24/x
  3. Step 3: Cross multiply
    1,276,813.80x = 1,915,064.64 × 330,105.24
  4. Step 4: Simplify right side
    1,276,813.80x = 632,172,872,602.71
  5. Step 5: Solve for x
    x = 632,172,872,602.71/1,276,813.80
  6. Step 6: Final answer
    x = 495,117.51

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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.