Home / 1,267,179.15-1,900,775.34-320,550.78

Finding the Fourth Proportional to 1,267,179.15, 1,900,775.34 and 320,550.78

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Solution

The fourth proportional to 1,267,179.15, 1,900,775.34 and 320,550.78 is: 480,827.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,179.15 : 1,900,775.34 = 320,550.78 : x
  2. Step 2: Convert to fraction form
    1,267,179.15/1,900,775.34 = 320,550.78/x
  3. Step 3: Cross multiply
    1,267,179.15x = 1,900,775.34 × 320,550.78
  4. Step 4: Simplify right side
    1,267,179.15x = 609,295,017,841.77
  5. Step 5: Solve for x
    x = 609,295,017,841.77/1,267,179.15
  6. Step 6: Final answer
    x = 480,827.84

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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.