Home / 682,425.20-1,024,415.40-402,100.40

Finding the Fourth Proportional to 682,425.20, 1,024,415.40 and 402,100.40

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Solution

The fourth proportional to 682,425.20, 1,024,415.40 and 402,100.40 is: 603,608.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,425.20 : 1,024,415.40 = 402,100.40 : x
  2. Step 2: Convert to fraction form
    682,425.20/1,024,415.40 = 402,100.40/x
  3. Step 3: Cross multiply
    682,425.20x = 1,024,415.40 × 402,100.40
  4. Step 4: Simplify right side
    682,425.20x = 411,917,842,106.16
  5. Step 5: Solve for x
    x = 411,917,842,106.16/682,425.20
  6. Step 6: Final answer
    x = 603,608.78

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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.