Home / 2,657,912.40-3,986,220.60-764,456.40

Finding the Fourth Proportional to 2,657,912.40, 3,986,220.60 and 764,456.40

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Solution

The fourth proportional to 2,657,912.40, 3,986,220.60 and 764,456.40 is: 1,146,498.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657,912.40 : 3,986,220.60 = 764,456.40 : x
  2. Step 2: Convert to fraction form
    2,657,912.40/3,986,220.60 = 764,456.40/x
  3. Step 3: Cross multiply
    2,657,912.40x = 3,986,220.60 × 764,456.40
  4. Step 4: Simplify right side
    2,657,912.40x = 3,047,291,849,481.84
  5. Step 5: Solve for x
    x = 3,047,291,849,481.84/2,657,912.40
  6. Step 6: Final answer
    x = 1,146,498.23

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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.