Home / 778,161.03-1,167,602.39-328,986.77

Finding the Fourth Proportional to 778,161.03, 1,167,602.39 and 328,986.77

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Solution

The fourth proportional to 778,161.03, 1,167,602.39 and 328,986.77 is: 493,632.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,161.03 : 1,167,602.39 = 328,986.77 : x
  2. Step 2: Convert to fraction form
    778,161.03/1,167,602.39 = 328,986.77/x
  3. Step 3: Cross multiply
    778,161.03x = 1,167,602.39 × 328,986.77
  4. Step 4: Simplify right side
    778,161.03x = 384,125,734,531.69
  5. Step 5: Solve for x
    x = 384,125,734,531.69/778,161.03
  6. Step 6: Final answer
    x = 493,632.71

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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.