Home / 2,126,815.20-3,189,128.40-630,712.80

Finding the Fourth Proportional to 2,126,815.20, 3,189,128.40 and 630,712.80

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Solution

The fourth proportional to 2,126,815.20, 3,189,128.40 and 630,712.80 is: 945,744.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126,815.20 : 3,189,128.40 = 630,712.80 : x
  2. Step 2: Convert to fraction form
    2,126,815.20/3,189,128.40 = 630,712.80/x
  3. Step 3: Cross multiply
    2,126,815.20x = 3,189,128.40 × 630,712.80
  4. Step 4: Simplify right side
    2,126,815.20x = 2,011,424,102,723.52
  5. Step 5: Solve for x
    x = 2,011,424,102,723.52/2,126,815.20
  6. Step 6: Final answer
    x = 945,744.65

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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.