Home / 720,964.80-1,081,447.20-402,100.20

Finding the Fourth Proportional to 720,964.80, 1,081,447.20 and 402,100.20

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Solution

The fourth proportional to 720,964.80, 1,081,447.20 and 402,100.20 is: 603,150.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,964.80 : 1,081,447.20 = 402,100.20 : x
  2. Step 2: Convert to fraction form
    720,964.80/1,081,447.20 = 402,100.20/x
  3. Step 3: Cross multiply
    720,964.80x = 1,081,447.20 × 402,100.20
  4. Step 4: Simplify right side
    720,964.80x = 434,850,135,409.44
  5. Step 5: Solve for x
    x = 434,850,135,409.44/720,964.80
  6. Step 6: Final answer
    x = 603,150.30

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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.