Home / 2,100,526.40-3,150,789.60-680,628.80

Finding the Fourth Proportional to 2,100,526.40, 3,150,789.60 and 680,628.80

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Solution

The fourth proportional to 2,100,526.40, 3,150,789.60 and 680,628.80 is: 1,020,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,526.40 : 3,150,789.60 = 680,628.80 : x
  2. Step 2: Convert to fraction form
    2,100,526.40/3,150,789.60 = 680,628.80/x
  3. Step 3: Cross multiply
    2,100,526.40x = 3,150,789.60 × 680,628.80
  4. Step 4: Simplify right side
    2,100,526.40x = 2,144,518,144,500.48
  5. Step 5: Solve for x
    x = 2,144,518,144,500.48/2,100,526.40
  6. Step 6: Final answer
    x = 1,020,943.20

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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.