Home / 1,206,612.20-1,809,788.70-320,148.20

Finding the Fourth Proportional to 1,206,612.20, 1,809,788.70 and 320,148.20

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Solution

The fourth proportional to 1,206,612.20, 1,809,788.70 and 320,148.20 is: 480,187.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,612.20 : 1,809,788.70 = 320,148.20 : x
  2. Step 2: Convert to fraction form
    1,206,612.20/1,809,788.70 = 320,148.20/x
  3. Step 3: Cross multiply
    1,206,612.20x = 1,809,788.70 × 320,148.20
  4. Step 4: Simplify right side
    1,206,612.20x = 579,400,594,685.34
  5. Step 5: Solve for x
    x = 579,400,594,685.34/1,206,612.20
  6. Step 6: Final answer
    x = 480,187.91

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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.